If a gene has two alleles, there are two possible genotypes.

a. True

b. False

Answers

Answer 1

Answer:

b. False

Explanation:

Genetics can be defined as the scientific study of hereditary in living organisms such as humans, animals and plants.

Heredity refers to the transfer of traits (specific characteristics) from the parent of a living organism to her offspring through sexual reproduction or asexual production. Some examples of hereditary traits are dimples, tongue rolling, baldness, handedness, freckles, curly hair, color blindness, height, etc.

According to Mendel's Law of Dominance, if a gene has two alleles, there are three (3) possible genotypes.

The three (3) possible genotypes are;

I. A combination of alleles such as AA.

II. A dominant combination (phenotype) such as Aa.

III. A recessive combination such as aa.

Where;

A represents the dominant allelea represents the recessive allele.

Also, a single version of a gene expressed by a living organism is referred to as an allele.


Related Questions

2. Which hormone stimulates the removal of sugar from the blood?
a. Glucose
b. Insulin
c. Glycogen
d. Glucagon

Answers

Answer:

Glucagon

Explanation:

Glucagon works along with the hormone insulin to control blood sugar levels and keep them within set levels. Glucagon is released to stop blood sugar levels dropping too low (hypoglycaemia), while insulin is released to stop blood sugar levels rising too high (hyperglycaemia).

what products of glycolysis are used in celluar respration

Answers

Answer:During the process of glycolysis in cellular respiration, glucose is oxidized to carbon dioxide and water. Energy released during the reaction is captured by the energy-carrying molecule ATP adenosine triphosphate.

Explanation:

The photograph shows solid waste pollution.
Which human lifestyle factors led to this situation? Select the three correct
responses. i’m

Answers

Answer:

A. People make things to earn a living

B. People want to buy things

D. People produce waste

Explanation:


Another name for the cells in plants and animals is
sentence?
cells

Answers

Answer:

Eukaryotic Cells

Explanation:

Eukaryotes are plants and Animal cells.

Another name for the cells in plants and animals is eukaryotic cells.

Pls it’s a drag and drop

Answers

Answer:

Explanation:

photosynthesis =

uses carbon+water

requires chlorophyll

produces food for the plant

converts food to usable energy

Respiration=

uses oxygen

releases carbon into the air

Transpiration= pulls water up from the roots to the leaves

important part of the water cycle

returns water to the air

What is Group 13 period 5 on the periodic table

Answers

Answer:

Boron is the fifth element of the periodic table (Z=5), located in Group 13. It is classified as a metalloid due it its properties that reflect a combination of both metals and nonmetals. Aluminum (also called Aluminium) is the third most abundant element in the earth's crust.

Which process requires ATP in order to release particles from a cell to maintain homeostasis?​

Answers

Answer:

Active Transport uses energy (atp) to maintain homeostasis within cells. Organisms use energy contained in their cells to allow proteins to make channels in the membrane for transport.

Mitosis vs Meiosis, someone help me with this, ill give brainiest.

Answers

Mitosis: chromosome # stays same in each cell, purpose is to produce more body cells, creates 2 identical sister cells
meiosis: purpose is to produce sex cells for reproduction, creates 4 genetically different cells, chromosome # cut in half in new cells
Both: cell division, dna copied during interphase, start with parent cell
Points of differences between Mitosis and Meiosis:1. Nuclei

Mitosis gives two nuclei, and hence two cells while meiosis gives four.

2. Cells

Mitosis gives identical cells to each other and to the mother cell while meiosis leads to genetic variation due to crossing over and independent assortment.

3.Division

Mitosis includes one division while meiosis includes two.

4. Crossing over

It takes place in Meiosis while absence in Mitosis.

5. Chromosomes

Mitosis produces diploid cells (46 chromosomes) whereas meiosis produces haploid cells (23 chromosomes)

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A concentration gradient exists when one area has a higher concentration of a substance than another area does.

True or false.

Answers

Answer: True

Explanation:

Answer:

true

Explanation:

please help me
A new species can form when a group of individuals remains completely separated from the rest of its family long enough to evolve different traits that prevent reproduction. true or false

Answers

Answer:

True

Explanation:

It is true that a new species can form when a group of individuals remains completely separated from the rest of its family long enough to evolve different traits that prevent reproduction.

This happens due to physical separation of members of a population.

Geographic isolation :Geographic isolation occurs when populations are separated by geographical barriers like rivers, mountain etc.

The population is separated from exchanging genetic material within the same species and results in evolution of a different trait.

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can anyone explain me the Transpiration Pull in plants?​

Answers

Answer:

As the water is lost from the leaf surface by transpiration, more water molecules are pulled up due to the tendency of water molecules to remain joined (cohesion), and thus to produce a continuous column of water through the stem is called transpiration pull.

Explanation:

Design your own scenario related to Bacteria or Viruses. Identify the independent and dependent variables.

Answers

Answer:

An experiment where an antibiotic is tested against bacteria. The antibiotic can vary in its concentration for example, different amounts are applied to a sample of bacteria to see if it is affected by the action of the antibiotic and if so, in what concentration. So, the independent variable is the concentration of antibiotic while the dependent variable is the survival (or not) of the bacteria.

Explanation:

An independent variable is a variable that represents a quantity that the scientist modifies in an experiment. A dependent variable represents a quantity whose value depends on how the independent variable is modified. This is the variable being studied and measured.

So, an example of this applied to bacteria or viruses could be:

An experiment where an antibiotic is tested against bacteria. The antibiotic can vary in its concentration, different amounts are applied to a sample of bacteria to see if it is affected by the action of the antibiotic and if so, in what concentration. So, the independent variable is the concentration of antibiotic while the dependent variable is the survival (or not) of the bacteria.

To complete the experiment, an antibiotic whose effect is already known can be used as a positive control. That is, it is already known to kill the bacteria. And as a negative control you can simply use water, which has no effect and is known not to kill the bacteria. In this way, we validate the results and make sure that there is not something else that is affecting the bacteria and that only the antibiotic being studied has an influence.

Examining different cells such as the plants, animal, and fungus cells. Identify the different organelles found in different cells and list the organelles and structures the characterize each of them.

Answers

Answer: Organelle is a sub-unit of cell and it is involved in performing specialized function within the cell. The type of organelles vary from organisms to organisms.

Explanation:

1. Centrioles are the cell organelles in which the spindle fibers are organized to which the chromosomes attach and mitotic division takes place. These are present only in animals and they are absent in plant and fungal cells.

2. Vacuoles are the storage organelles which store excess water, waste metabolites, sugars and other components in them. In plant cells they are of larger size whereas the vacuoles are small in size in case of the animal and fungal cells.

3. The plants cells and fungal cells have cell wall made up of cellulose (plants) and chitin (fungus) respectively. The cell wall is absent in animal cells.

4. The plant cells and fungal cells do not possess cilia and flagella for locomotion whereas animal cells have cilia and flagella.

4.Paramecium is able to move by hairlike structures called
____

Answers

Answer:

Cilia

Explanation:

           

the ratio between mass and volume of mass per unit volume.
Solid
Volume
Mass
Density​

Answers

Yes that’s right absolutely

What needs to happen FIRST for a fossil to form?

Answers

Answer:

for a fossil to form, an organism must be buried quickly so that any oxygen is cut off and its decay slows down or stops. ... Fossil formation begins when an organism or part of an organism falls into soft sediment, such as mud.

Explanation:

For a fossil to be formed, it is required for a plant or an animal to be covered by the sediment. Thus, the correct option is D.

What is the process of fossil formation?

Fossils are the preserved evidence of the organisms which were present on this planet once. There are four types of process which contribute to the formation of a fossil. These are mineralization, carbonization, encrustation and distillation. These processes occur once a living organism has become trapped within the surrounding sediment, and it is primarily depend upon the mineral composition of silt and water available.

Fossil formation begins when a living organism or any part of an organism falls into the soft sediment, such as mud. The organism or part of it then gets quickly buried by more sediment. As more and more sediment collects on top of the organism, the layer with the organism or part becomes compacted and it undergoes deep into the Earth.


Therefore, the correct option is D.

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Use the information to answer the following question.
A population of rabbits lives in a grassy field that is lush and green in summer and covered in snow in winter. At the start of the summer,
75% of the population are white rabbits, and the remaining 25% of the population are brown rabbits. In rabbits, white (W) is dominant
over brown (w). During the summerthe field where they live experiences a drought. The
summer drought lasts for two years, through
many generations of rabbits.
Which prediction BEST estimates the expected percent of white and brown rabbits in the population at the end of the
drought?
O A. The rabbit population will consist of 0% white rabbits and 100% brown rabbits.
OB. The rabbit population will consist of 35% white rabbits and 65% brown rabbits.
C. The rabbit population will consist of 95% white rabbits and 5% brown rabbits.
D. The rabbit population will consist of 80% white rabbits and 20% brown rabbits.

Answers

Answer:B

Explanation:

The rabbit population will consist of 35% white rabbits and 65% brown rabbits. Therefore, option B is correct.

What are the limiting factors of the rabbit population?

Until a limiting factor, such as low reproduction, food scarcity, predation, disease, and/or weather conditions restrict populations, the population tends to grow.

Some density-dependent limiting factors are the spread of pathogens, competition for nesting locations, the destruction of habitat, increase in the population of predators. Several predators, including raptors and coyotes, use rabbits as food, but in urban and suburban areas, cats and dogs pose the biggest threat. Some abiotic limiting factors are drought, flood, earthquake, and all types of natural disasters.

The rabbit population will consist of 35% white rabbits and 65% brown rabbits. Therefore, option B is correct.

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Help me please, I’m confused

Answers

Answer:

Photosynthesis-

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activities. Photosynthesis occurs in the chloroplast of a plant, which contains chlorophyll. In order for photosynthesis to take place, it needs to have water and carbon dioxide, the two very important raw materials necessary for this process. In the presence of carbon dioxide, such cells are able to convert this solar energy into energy-rich organic molecules, such as this energy-rich molecule known as glucose. Oxygen the by product of photosynthesis is inhaled by heterotrophs which aids in cellular respiration and other internal processes and then exhales carbon dioxide. ... In like manner, carbon dioxide passes from blood to the alveoli and exhaled after

Explanation:

What is science????
No spam​

Answers

The intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.

Brady took a cutting from a sweet potato vine in his family garden and placed the vine in a small vase filled with water. After about a week, tiny roots had begun to grow. What is this an example of

Answers

Answer:This is an example of asexual reproduction.

Explanation:

Reproduction is defined as the ability of living organisms to produce offspring, that is, new individuals of their type. Living organisms have developed many methods of reproducing. These can be either ASEXUAL or SEXUAL.

Asexual reproduction: In asexual reproduction, an individual produces an offspring by itself, that is, only one parent is present. This type of reproduction is common among flowering plants. Examples of asexual reproduction includes:

--> Fission

--> Budding

--> Spore formation

--> Fragmentation and

--> Vegetative propagation.

The sweet potato vine is reproduced by an asexual means known as vegetative propagation. Here, a new plant grows from any portion of an old one other than the seeds. When stem cutting are taken from the vine, new storage roots are formed within few days.

Brady took a cutting from a sweet potato vine in his family garden and placed the vine in a small vase filled with water. After about a week, tiny roots had begun to grow which is an example of - Asexual reproduction.

Asexual reproductionis a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes.Examples of asexual reproduction include:   Fission  Budding  Spore formation  Fragmentation and  Vegetative propagation.In the given scenario sweet potato is cultivated by vegetative propagation.Brady takes stem cuttings from the vines, which then root and form new storage roots.Sweet potatoes are relatively easy to propagate by rooting vine cuttings directly in the ground or in a well-drained rooting media

Thus, The given case shows an example of - asexual reproductions.

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ste
Class
Lesson Uutine
Levels of Organization
A Lite's Organisation
1. A large animal is composed of trillions of tiny
together
organisms are made of only one cell.
working

Answers

Answer:Life's Organization. 1. A large animal is composed of trillions of tiny cells working together. 2. Unicellular organisms are made of only one cell. B.

Explanation:

What layer of the Earth does the upper surface of the cross-section represent? Group of answer choices Inner Core Outer Core Mantle Crust

Answers

Answer:

Hello! Your answer is...

The lithosphere is the rocky outer part of the Earth. It is made up of the brittle crust and the top part of the upper mantle. The lithosphere is the coolest and most rigid part of the Earth. The crust is the layer that you live in. The Outer and Inner Cores are hotter. The temperatures of the crust vary from air temperature on top to about 1600. The asthenosphere is the part of the mantle that flows and moves the plates of the Earth.

Explanation:

Hope this helps you! I'm new, but am really smart and nice. Hope you enjoy your time on brainly!

The crust of the Earth, the uppermost layer visible in a cross-section of the planet, is halfway through at this point. The crust, which only accounts for around 1% of the Earth's total volume, is made up of igneous, metamorphic, and sedimentary rocks.

What is the upper surface of the cross-section of Earth?

The rocky exterior of the Earth is known as the lithosphere. It is composed of the uppermost layer of the upper mantle and the brittle crust. You live in the crust of the earth. It is hotter in the outer and inner cores.

The crust varies in temperature from the top air temperature to roughly 1600. The Earth's tectonic plates are moved by the asthenosphere, a region of the mantle.

Therefore, Mantle Crust layer of the Earth does the upper surface of the cross-section represent.

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How do you think genetics can be used to describe the real world?

Answers

Answer:

ke tlao oraba lata outlwa hlr ke busy

Answer:

Genetics are used in many aspects, such as identifying an individual and more. Genetics can also be used to find out if a couple's offspring will have offpsrings with disorders or diseases.

Explanation:

I AM LITERALLY CRYING RIGHT NOW PLEASEE HELPPP WILL MARK BRANLIEST HELPPP MEE

Part 1: Explore

Based on your research and observations of the three common states of matter, answer the

following questions.

Out of the videos, animations, and images you researched, which was your favorite? Why?

Do you feel it accurately represented the differences between each state of matter


How does the space between the particles in each state of matter differ?

How do the particles in each state of matter move?

Part 2: Explain

Examine the heating curve of water below, and then answer the questions about it. If you require the use of a text reader, open the file Heating Curve of Water to receive the information.


Which three parts of the graph’s curve represent the solid, liquid, and gaseous state of water?

Explain your reasoning.

Which point of the graph’s curve represents the melting point of water? Explain your reasoning.

Which point of the graph’s curve represents the boiling point of water? Explain your reasoning.

What happens to the energy of water in Part B and Part D of the graph’s curve? How do you know?

Why does the temperature of the water stay the same when it melts and boils?

Now comes the hands-on part of your project! You will continue to explore phase changes by performing an experiment and creating your own heating curve. Before you begin your experiment, read over the following information.


The materials you will need for your experiment are listed below.


small pot

measuring cup (must have mL and oz markings)

spoon (wooden, plastic, or metal)

ice

water

stove

thermometer (should have units in °C

Time (min) Temperature of Water (°C) Observations of Water

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Place 14 oz of crushed ice into a small pot. Then add about 125 mL of water to it.

Using the thermometer, measure and record the initial temperature of the ice water. List this temperature in °C in the “0” minutes row of your data table in the lab handout. *Do not allow the thermometer to touch the bottom of the pot when recording measurements.

Place the pot on the stove, and turn the knob to the medium-low setting.

Using the thermometer, measure the temperature every minute until the water begins to boil vigorously. Record this data in the table on your lab handout.

At each measurement, also record what is happening to the water. Be sure to record the times of these events:

The ice melts.

The water forms steam.

The water begins to boil.

Once the water has begun to boil, stir the water constantly with the spoon.

Continue to measure and record the temperature every minute until almost all the water has boiled and the pot is close to empty.

Record the last temperature, and turn off the stove. DO NOT TOUCH THE POT WITHOUT SAFETY EQUIPMENT.

Create the x-axis and y-axis of a graph.

Label the x-axis as follows: Time (min).

Label the y-axis as follows: Temperature of Water (°C).

Along the x-axis, create and label 15 marks, one for each minute of the experiment. (Hint: The origin starts at 0.)

Along the y-axis, create and label temperature markings for every 20 degrees. (Hint: The origin starts at 0.)

Refer to the data from your experiment to plot the points on your graph. Then connect each of the data points with a line.

Look over your graph to make sure it is clear and correctly labeled.

Either save your graph as a computer file, or take a picture of your graph and upload it as a file on your computer.

Describe your experience in performing the experiment. What went well? What could have been

improved?

Examine your line graph. How does the graph’s slope change over time?

Examine your line graph. Why does the slope change?

How could you apply the knowledge gained from this experiment in the real world?

Hint: Think of cooking.

Make a prediction. How do you think adding other substances to the water would affect its

heating curve?

THANK YOU SO MUCH

Answers

Answer:

think of cooking

Explanation:

the reason is that I just know it

In which of the following would competition not occur?
A Rabbits grazing in a field
B Owls and foxes hunting for mice
с Daisies and dandelions growing in a lawn
D Algae and fish in a loch

Answers

Answer is D

A- competition. Rabbits both want grass so it is a competition depending on how much grass there is.

B- competition. Owls and foxes hunting mice is considered two predators hunting, competition for food again.

C. Competition. Even plants don’t get along. Most plants need sunlight to stay alive and weeds grow quickly. The weeds are more or less silently fighting over the yard to keep growing.

D. Not competition. Algae is an underwater plant that most water life tend to feed off of. In this situation the fish would be eating the plant such as how the rabbits ate the grass, there would only be competition if there was less Algae and more fish. But in this case there is Algae and one fish.

Sorry if it sounds confusing but D is the correct answer

DNA carries the information needed to make proteins. How is this information used to make proteins?

Answers

Answer:

The information contained in DNA is expressed giving rise to proteins, through transcription processes, a step by which the information is transferred to a messenger RNA molecule (m-RNA) and, through the process of translation, the message carried by m-RNA is translated into protein.

Answer:

DNA is transcribed into mRNA. Ribosomes "read" the mRNA and translate each group of three nucleotides into amino acids to build proteins, with the help of tRNA.

Explanation:

Suppose that the same island experiences environmental
conditions that prevent the growth of large seeds. What do you think would happen to
the average size of finch beaks? Explain your reasoning.

Answers

Answer:

The size of finch's beak depends on the size of seeds.

Explanation:

The average size of finch beaks also changes because the size of finch beak changes according to the size of seed available. If the environment contains large sized seeds so the population of finch having small beak size increases due to food availability while on the other hand, if the region contains large sized seeds so the population of finch having big beak size increases so according to the size of seeds, the size of finch's beak also changes.

NADP+ is an example of an electron carrier. Describe its function in photosynthesis.

Answers

Answer:

Its ferment oxidant-renewal of bio-reactions at cells.

John Ray introduced a new method of grouping by similarities in appearance.
True
False

Answers

Answer:

true

Explanation:

Answer- True
hope this helps!!

Name one organism that produces glucose through the process of chemosynthesis. Explain why it cannot produce glucose using photosynthesis.

Answers

Answer:

During chemosynthesis, bacteria living on the sea floor or within animals use energy stored in the chemical bonds of hydrogen sulfide and methane to make glucose from water and carbon dioxide (dissolved in sea water). Pure sulfur and sulfur compounds are produced as by-products.

Explanation:

Answer:

During chemosynthesis, bacteria living on the sea floor or within animals use energy stored in the chemical bonds of hydrogen sulfide and methane to make glucose from water and carbon dioxide (dissolved in sea water). Pure sulfur and sulfur compounds are produced as by-products.

Explanation:

Other Questions
Demands for a newly developed salad bar at the Great Professional restaurant for the first six months of this year are shown in the following table. What is the forecast for July if the 3-month weighted moving - average method is used? (Use weights of 0.5 for the most recent demand, 0.3, and 0.2 for the oldest demand.) Using a contribution margin format income statement to measure the magnitude of operating leverage Nagano Company, a merchandising firm, reported the following operating results: Income Statements Sales revenue (2,400 units $100) Cost of goods sold (2,400 units $65) Gross margin Sales commissions (10% of sales revenue) Administrative salaries expense Advertising expense Depreciation expense Shipping and handling expense (2,400 units $1) Net income 240,000 (156,000 84,000 (24,000) 15,000 (20,000) (10,600) (2,400) $ 12,000 Required a. Reconstruct the income statement using the contribution margin format. b. Calculate the magnitude of operating leverage. e. Use the measure of operating leverage to determine the amount of net income that Nagano will earn if sales revenue increases by 10 percent. Explain how a raindrop travels after it hits this bike umbrella until it slides off the umbrella. You must use 1 specific properties of water (1 pt) we discussed in class and explain (1 pt) that property of water The exothermic reaction 2NO2(g) N2O4(g), is spontaneous...at what temperature? high or low? Gravity pulls objects downward. How much work is performed when gravity pulls the man down 0.5 m after each step? 15. there are three types of shared memory organizations. what are they? The middle section of the speechfrom "It will be recorded " to "safety of our nation"is an example of logos in a carefully constructed argument:a. What is the conclusion/claim of that argument?b. What are the reasons or key ideas offered to support that conclusion/claim Tony invested $5,500 in a four-year CD that paid 4. 8% interest, but later needed to withdraw $475 early. If the CDs penalty for early withdrawal was three months worth of interest on the amount withdrawn, how much of a penalty did Tony pay? a. $5. 70 b. $22. 80 c. $60. 30 d. $66. 0. A student conducts a reaction at 298 K in a rigid vessel and the reaction goes to completion. The temperature of the reaction vessel drops during the reaction. Which of the following can be determined about So for the reaction?So < 0 at 298 K, since H < 0 and G > 0.S o < 0, since the reaction goes nearly to completion at 298 K.,So > 0, since the reaction is thermodynamically unfavorable at 298 KSo > 0, since the reaction is thermodynamically favorable at 298 K. The El Paso International Airport and the El Paso Zoo recently held an exhibit that displayed paintings made by orangutans, elephants, gila monsters and meerkats. Does this qualify as art? Make an argument in favor or against and support your case what is the difference between an argument that is valid and one that is invalid? construct an example each. Products that are distinctive in physical aspects, location, intangible aspects and perceptions in the eyes of the consumer are called products. Select the correct answer below: O homogeneous differentiated O monopolistic O identical A capacitor with square plates, each with an area of 37.0 cm2 and plate separation d = 2.58 mm, is being charged by a 515-ma current. What is the change in the electric flux between the plates as a function of time? if a and b are finite sets, then |a b| = |a| |b| Select ALL of the following characteristics that a good biometric indicator must have in order to be useful as a login authenticator a. easy and painless to measure b. duplicated throughout the populationc. should not change over time d. difficult to forge use exercise 27 to show that among any group of 20 people (where any two people are either friends or enemies), there are either four mutual friends or four mutual enemies.\ In this assignment you will learn and practice developing a multithreaded application using both Java and C with Pthreads. So you will submit two programs!The application you are asked to implement is from our textbook (SGG) chaper 4, namely Multithreaded Sorting Application.Here is the description of it for convenince: Write a multithreaded sorting program that works as follows: A list of double values is divided into two smaller lists of equal size. Two separate threads (which we will term sorting threads) sort each sublist using insertion sor or selection sort (one is enough) and you need to implent it as well. The two sublists are then merged by a third threada merging thread which merges the two sorted sublists into a single sorted list.Your program should take take an integer (say N) from the command line. This number N represents the size of the array that needs to be sorted. Accordingly, you should create an array of N double values and randomly select the values from the range of [1.0, 1000.0]. Then sort them using multhithreading as described above and measure how long does it take to finish this sorting task.. For the comparision purposes, you are also asked to simply call your sort function to sort the whole array and measure how long does it take if we do not use multuthreading (basically one (the main) thread is doing the sorting job).Here is how your program should be executed and a sample output:> prog 1000Sorting is done in 10.0ms when two threads are usedSorting is done in 20.0ms when one thread is usedThe numbers 10.0 and 20.0 here are just an example! Your actual numbers will be different and depend on the runs. ( I have some more discussion at the end). From the above mentioned problem, suppose that Noname has 23,000 Dram chips in invetory. It anticipates receiving a lot of 3,000 chips in week 3 from another firm that has gone out of business. At the current time, Noname purchases the chips from two vendors, A and B. A sells the chips for less, but will not fill an order exceeding 10,000 chips per week. Suppose P(A) = 0.25. The probability of complement of A is:A. 0.82B. 0.50C. 0.75D. 0.25 How many moles of Fe2+ are there in a 2. 0g sample that is 80% by mass of FeCl2?