What is defined as the variable in a controlled experiment that is purposely changed or manipulated? PLEASE HELP!!

constant
independent variable
controlled variable
dependent variable

Answers

Answer 1

Answer:

Independent Variable

Explanation:


Related Questions

One of the first astronomers to use a telescope was Galileo. Using his telescope he discovered that Jupiter had four moons and each night, the four moons, seen as points of light, appeared to change positions slightly. This observation gave further evidence for what? All BUT ONE could apply.

Answers

Answer:

B. The planets vary in size and composition.

Explanation:

Galileo was an Italian scientist and he was the first person to use a telescope in the field of astronomy. Although, the first telescope was invented by Sir Isaac Newton.

A telescope can be defined as an optical instrument or device which comprises of a curved mirror and lenses used for viewing distant objects i.e objects that are very far away such as stars and other planetary bodies.

One of the first astronomers to use a telescope was Galileo. Using his telescope he discovered that Jupiter had four moons and each night, the four moons, seen as points of light, appeared to change positions slightly. Therefore, this observation gave further evidence that the planets vary in size and composition. The slight change in the position of the moon indicate that planetary bodies have a variation in size and matter (constituent elements) that make them up.

Answer:

b

Explanation:

i just started this survey i got to number 5 and i have no idea how to do it.​

Answers

Wat survey

Hope U had a nice day Nd stay warm
What’s the question

Which of the following is a trace fossil? *
a mark left by a dinosaur's tail
a mosquito trapped in amber
a mummified plant seed
O a frozen woolly mammoth
which

Answers

Answer:

A. A mark left by a dinosaur's tail.

Explanation:

A trace fossil is the mark or imprint of an animal's body or something it did or left behind, rather than the physical animal itself.

Hope this helps :)

"A cell with 26 chromosomes undergoing meiosis will have 4 daughter cells with 26 chromosomes each by the end of meiosis II. " why is this INCORRECT?

Answers

Answer:

the number of chromosomes each time gets halved

so the first division will have 13 in each daughter cell

and the second will have about 3 in each daughter cell

Explanation:

Question 2 of 10
Psychological perspectives exist:
O A. to address the physical properties of the brain.
B. to explain the science of behavior.
C. so that there can be different ways of looking at psychological
questions.
O D. to enforce one particular way of looking at problems.

Answers

Answer:The correct option is B.

to explain the science of behavior.

Explanation:

This is because psychology perspective is the study of the science of cognitive behavioral. It entails the behaviors of humans both conciously and unconsciously. This perspective deals with the properties of brain. It deals with human ways of thinking, mind and behavior. Therefore it is the science of human behaviors.


PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*..
IM GIVING 40 POINTS !! DONT SKIP :((.

Answers

Answer:

I believe the answer is A.

Explanation:

It wouldn't be B or C and I don't think D really has anything to do with biotechnological research.

--------------------------------------------------------------------------------------------^^

have a good day :))

Give two specific examples where asexual reproduction happens in nature.

Answers

Answer: Bacteria produce asexually, making copies of itself to spread. Plants also produce asexually,  this happens in several ways one way s binary fission. This is asexual reproduction by a separation of the body into two new bodies. Simply copies of the original.

Explanation:

What characteristics make dna a polymer ?

Answers

First of all DNA is a polymer made from four different monomers , called nucleotides . These join together in different combinations to make long strands. In a DNA molecule , two strands wrap around each other to form a double helix structure.

Which of the following would NOT be considered an agricultural pest?

an insect chewing holes in leaves
a dog lying among the crops
a rabbit eating growing vegetables
a mole digging tunnels beneath the crops

Answers

Answer:

A dog lying among crop

Explanation:

A insect, and mole are considered pest. And a rabbit eating growing vegetables, well if the rabbit eats the growing vegetables then there not growing.

Answer:  The correct answer is a dog lying among the crops

Explanation:  This answer has been confirmed correct.

A dog is a pet and is not causing damage to the crops. The other three options are all harming the plants (chewing, eating, and digging tunnels).

which of the following is not a condition that must be made for hardy-weinberg equilibrium 1.no mutation 2.no migration 3.domunant alleles nore frequent than recessive allels 4.large population 5. no natural selection guy please answer this one​

Answers

Answer:

3.dominant alleles more frequent than recessive alleles

Explanation:

To achieve hard-Weinberg equilibrium, certain conditions must be made.

These conditions are:

1. There is noo mutation,

2. Existence of random mating,

3. There should be no natural selection

4. There is the infinite population size

5. No migration

Hence, in this case, the correct answer is option 3, which is not a condition to be made for Hard-Weinberg equilibrium

2. All living things are made of cells.
True
False

Answers

Answer:

true

Explanation:

WE ARE MADE OF CELLSSSSSSS AND EVERYTHING THAT IS LIVING DOES TOO

For aerobic respiration, a variety of substances must be in a state of influx across the inner membrane. Assuming a brain cell in which glucose is the sole energy source, indicate for each of the following substances whether you would expect a net flux across the membrane and if so, how many molecules will move in which direction per molecule of glucose catabolized.

- electrons
-pyruvate
-oxygen
-ATP
-ADP
-Acetyl CoA
-Glyceral-3-phosphate
-NADH
-FADH2
-Oxaloacetate
-Water
-Protons

Answers

Answer:

electrons inflow

pyurvate inflow

oxygen inflow

ATP Outflow

ADP Inflow

Acetyl CoA no net change

Gluceral-3-phosphate no net flow

NADF inflow

FADH2 outflow

Oxaloacetate no net flow

water outflow

proton outflow

Explanation:

Aerobic respiration is the process in which cell get oxygen from within. There is no inflow of oxygen and the movement is minimum. The membrane covering the cell releases the excess oxygen if the initial storage is more than the requirement. This is in the form of outflow in ATP.

the structure labeled A in the figure below is called the

Answers

Answer:

Centromere

Explanation:

Connects sister chromatids

The structure labelled A in the figure is a centromere.

What is a centromere?

The centromere is a region of the chromosome that is constricted. The centromere plays an important role in the division of cells during both the processes of mitosis and meiosis.

The centromere is simply the region of the chromosome where the spindle fibres attach. Therefore, when the spindle fibres attach to the centromere, they pull the sister chromatics in the opposite directions of the cell during cell division.

Thus, at the end of the cell division, each of the daughter cells gets one-half of the chromosome containing identical DNA. The centromere is thought to be the middle region of the chromosome, even though it is often not in the middle. It is simply the region where the chromosomes are most constricted

The centromere separates the chromosome into the P arm and the Q arm. These are simply the names given to the short arm and the long arm of the human chromosome respectively.

Read more about centromere, here

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I NEED HELP ON THIS QUESTION ^^^^!

Answers

Answer:

The answer is refraction.

Explanation:

Absorption is when no light is reflected back, diffraction is where light bends around a corner, reflection is like taking and shining a flashlight against a mirror, and refraction is like when you put a straw in water and it looks like the straw is not straight.

Answer:

D reflection nga

wala na bang ibang tanong HAHAHHA

Why are enzymes described as being like a lock and key?

Answers

Answer:

enzymes are compared to a lock and key as they can activate a chemical process or put that same process into a stop

Explanation:

Pleaseeeee help me ASAP

Answers

Answer:

11. B. 25%

12. C. Short AND E. Pink

Hope this helps!!

- Kay :)

Two genes control color in corn snakes as follows: O- B- snakes are brown, O- bb are orange, oo B- are black, and oo bb are albino. An orange snake was mated to a black snake, and a large number of F1progeny were obtained, all of which were brown. When the F1 snakes were mated to one another, they produced 100 brown offspring, 25 orange, 22 black, and 13 albino.a. What are the genotypes of the F1 snakes

Answers

Answer:

The correct answer is - OoBb

Explanation:

As it is given that:

O- B- snakes = brown

O- bb = orange

oo B = black

oo bb = albino

And here, the cross between an orange snake and black snake which means:

P0 : ooBB × OObb

offspring of f1 would be =

F1 : OoBb

self cross of f1 offsprings

F2 : OoBb × OoBb

Gametes  OB     Ob        oB           ob

OB OOBB OOBb OoBB OoBb

Ob OOBb OObb OoBb Oobb

oB OoBB OoBb ooBB ooBb

ob OoBb Oobb ooBb oobb

here we get approximately similar as Phenotypic ratio as mention in question- 9 : 3 : 3 : 1 or 100:25:22:13

Thus, the correct answer would be: OoBb

What kind of mutation would occur if a sequence of DNA is changed from ATCGGCTTAACG to ATCGGCTAAACG?

Answers

Answer:

Base substitution mutation

Explanation:

Mutation is the alteration or change that occurs to the sequence of a gene caused by a mutagen (chemicals) or spontaneously-induced. Depending on how the mutation occurs, it is of different types. The mutation shown in this question is as follows:

ATCGGCTTAACG to ATCGGCTAAACG

This type of mutation is called SUBSTITUTION MUTATION. Substitution mutation is a type of mutation that involves the replacement of one or more nucleotide base by another. In this original sequence; ATCGGCTTAACG, the eight base T was replaced by base A in the sequence, hence, it is a substitution mutation.

Select the correct answer.
Ships accidentally spread a species of sea urchins to an area of the sea in which they previously didn’t live. The graph depicts the growth trend of native seaweed, a common food for sea urchins, after this invasion. What could ecologists do to curb the trend in the seaweed population?



A.
Eliminate the sea urchins’ competitor.
B.
Introduce more sea urchins.
C.
Introduce a competitor for seaweed.
D.
Introduce a predator for invasive sea urchins.

Answers

I would pick A hope it’s correct

Answer:

D!

Explanation:

Introducing a predator to kill the sea urchins will lower their population and/or make them move away from the area they invaded

I NEED HELP ASSAP


how can you tell whether two magnets will attract eachother, repel eachother, or both

plz explain in a few sentences​

Answers

Answer:

Explanation:

there is a positive side and a negitive side to magnets two of the same side of the magnet will repel oppisites will attract

positive+positive=repel

positive+negitive=atract

Answer:

attract: when two magnets will attract, S and N will be facing each other

repel: when two magnets will repel, S and S or N and N will face each other

both: when two magnets will attract and repel, the magnets won't be placed in the same way. N will be facing the middle of both S and N or S will be facing the middle of N and S

Explanation:

this is what i learned i hope it's right if not i didn't say nothing

compare and contrast nutrition in a guava plant and Rhizopus fungus

Answers

Contrast nutrition in a guava plant and rhizopus fungus:
Guava plant is an autotrophic, but fungi is saprophytic.
Guava is a "tropical fruit" which have nutrients like lycopene, vitamin A and that is also present in "tomatoes, beta-carotene, and cryptoxanthin".
When this fruit received infected with pathogens, there can be a transferred in its nutrient value.
For example: Guava affected by Rizophus arrhizus forced the contents of sugar, protein and ascorbic acid. It raises the phenol level in the fruit.

The article mentions the six rules for choosing effective supporting materials. Name the three you feel are the most important and explain why you feel this way. (Site 1)

Answers

Answer:

Don't have to many. I feel like this is one of the most important because if you go on to long about the same thing you will begin to lose your audience and the speech will not be as good anymore. Match the Material to the audience. This is another very important one because if the audience can relate to what you are saying they are going to be way more engaged in what you have to say. Make the purposeful. This is final and 3rd most important rule because what you are saying has to mean something or else what is the point in saying it at all.

Explanation:

Personally don't think this is that good of an essay but I got a 100% on it so it works.

The most important rules include the following;

Saying meaningful words.Matching the material with audience.Be short and concise to prevent ambiguity.

What is an Audience?

These are referred to as  a group of listeners or spectators. It is best to convey information to them in the best possible way.

This is why the important rules which are mentioned above must be followed to prevent confusion.

Read more about Audience here https://brainly.com/question/26120710

Compared to small cells, large cells have more trouble doing what

Answers

Answer:

As the cell grows, it faces some issues such as:

• Running out of the nutrients and requirement of growth factors.

• Running out of the space.

• Require appropriate gas exchange.

As compared to the smaller cells, larger cells have more issues in moving the required materials inside and excretory products outside. This is because the ratio of the surface is to volume is turning more and more unbalanced and takes much longer time for the cellular processes to take place.

Explanation:

2. Consider a well-trained 130-pound female marathon runner, Jordan. Jordan has just loaded up on a carbohydrate meal and has the maximum amount of stored glycogen (6.8 grams of glycogen per pound of body weight). (10pts)
a. How many grams of glycogen is Jordan storing in her body? Show your calculations.

b. How many Calories does she have stored as glycogen?

c. If this same number of Calories were stored as fat, how much would it weigh?

d. Given your answers to a. and c., why do you think your body stores most of its extra energy as fat rather than glycogen?

e. Jordan will be competing in a marathon (26.2 miles). Given her above glycogen stores and the rate at which she consumes them running at marathon pace, she only has enough glycogen to last for 24 miles. What must she do in order to be able to run at the same pace beyond this?

Answers

Considering a well-trained 130-pound female marathon runner named Jordan.

The grams of glycogen Jordan is storing in her body is 884 grams.

Given that:

weight of the female marathon runner = 130 poundsmass of the glycogen = 6.8 grams / pound

a.

The total mass of glycogen that Jordan is storing in the body of 130 pounds is:

= 130 pounds × 6.8 grams/pound= 884 grams

b. The amount of Calories she has stored in the body of 130 pounds is calculated as follows.

Since 1 gram is equivalent to 7.716179 kcal

884 grams will be = (884 grams × 7.716179 kcal)/ 1 gram= 6821.102 kcal.

c.

Fat is a class of food that the when consumed provides energy to the body. It is usually stored as fatty acid and is measured in pounds.

One pound of fat usually requires an energy of about 3500 calories to burn.

Since 1 pound of fat requires 3500 calories;

The weight of the glycogen in fat will be:

= (6821.102 kcal × 1 pound of fat)/3500 kcal= 1.949 pounds of fat

d.

The body stores most of its extra energy as fat rather than glycogen because the body after 8 hours of eating, body starvation starts to occur. At this stage, the stored fat is designated to supply energy to the body.

e.

Given that:

Jordan will be competing in a marathon of = 26.2 milesFrom her condition, she has enough glycogen to last for 24 miles.

In order for her to be able to run at the same pace beyond the 24 miles, she needs to consume fatty food substances that can help her store additional fat that can be used to provide energy during the marathon race.

Therefore, we can conclude that we have understood the grams of glycogen that Jordan can store in her body, the conversion from grams to calories, and how Jordan can achieve the marathon of 26.2 miles.

Learn more about fat here:

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How is energy stored when ADP is converted to ATP?

Answers

Answer:

Energy is stored in the bonds between the phosphate groups (PO4-) of the ATP molecule. When ATP is broken down into ADP (adenosine diphosphate) and inorganic phosphate, energy is released. When ADP and inorganic phosphate are joined to form ATP, energy is stored.

Explanation:

Hope this helped Mark BRAINLEST!!

How do we use the Earth’s heat by capturing geothermal energy?

Answers

Answer:People can capture geothermal energy through: Geothermal power plants, which use heat from deep inside the Earth to generate steam to make electricity. Geothermal heat pumps, which tap into heat close to the Earth's surface to heat water or provide heat for buildings. Dose this help?

Explanation:

Do alligators have complete 360 vision?

Answers

Answer:

yes

Explanation:

why is vachellia nilotica classified as family level

Answers

Answer:

Vachellia nilotica is a flowering plant tree in the family Fabaceae.

Explanation:

Mendel's primary contribution to our understanding of inheritance was
al The idea that genes are found on chromosomes
b) Explanation of the patterns of inheritance
c) The discovery of alleles
d) Determining that informations contained in DNA are for protein synthesis​

Answers

Answer:

D.) (Determining that informations contained in DNA are for protein synthesis)

Low-carbohydrate diets became popular in the late 1990s and were quickly proclaimed to be a fast and easy method of weight loss. The effectiveness and safety of these diets are dependent on the activity and overall health of the individual as well as the total nutritional content of the diet. However, it is true that in some cases, these diets have been effective. What metabolic effects caused by eating a low-carbohydrate diet can be linked directly to a decrease in fatty acid synthesis and an increase in fatty acid oxidation?

a. release of insulin from pancreatic's cells
b. dephosphorylation of AMPK
c. release of glucagon from pancreatic's cells
d. phosphorylation of AMPK

Answers

Answer:

c. release of glucagon from pancreatic's cells

d. phosphorylation of AMPK

Explanation:

Low-carbohydrate diets (LCDs) stimulate the secretion of glucagon by a decrease in the blood glucose concentration. Glucagon is a key hormone secreted by pancreatic cells in the same way as insulin but in an opposite way. This hormone (glucagon) prevents glucose accumulation as hepatic glycogen, while insulin helps to the accumulation of glucose in the liver as glycogen, thereby acting to reduce hepatic glucose output. Moreover, the AMP-activated protein kinase (AMPK) is a kinase protein that mediates the phosphorylation and inhibition of acetyl-CoA carboxylase (ACC) in order to reduce the synthesis of malonyl-CoA, a key molecule that regulates myocardial fatty acid oxidation.

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How to write email to request joining the swimming club Select the name of the correct country on the map.The creation of which nation is a major cause of the hostility toward the United States by terrorists in the Middle East?LEBANONSISRAELEGYPTCountries in Middle EastGEORGIATURKEYSUDANSYRIAJORDANERITREAAZERBADANARMENIAIRAQKUWAITSAUDIARABIAYEMENCasa TURKMENISTANIRANUZBEKISTANQATAROMANAFGHANISTANUNITED ARABEMIRATESKYRGYZSTANTAJIKISTANPAKISTAN all but one of the following are traditional solutions to the mind-body problem. Which one is not one of these traditional solutions? a. There are only mental events, and physical events do not exist. b. There are only physical ovents, and mental events do not exist c. Mental events and physical events are the same d. There are no mental events and no physical events. A solid having a mass of 7.89 g was added to 87.4 g of water at 19.5 C in a calorimeter. After the solid dissolved and thoroughly mixed with the water, the temperature of the aqueous mixture increased by 5.7 C. What is the heat of the aqueous mixture (cm) in units of J? Assume the specific heat of the mixture is equal to that of water. 4.184 J/g. C. a. 2100 jb. 2300 jc. -2300) d. 01.0x10 j how much current is drawn by a television with a resistance of 30.3 that is connected across a potential difference of 120 v? create a table that lists all of the plumbing fixtures (with proper labeling) and their associated drainage fixture unit (dfu). a point charge of +22C (22 x 10^-6C) is located at (2, 7, 5) m.a. at observation location (-3, 5, -2), what is the (vector) electric field contributed by this charge?b. Next, a singly charged chlorine ion Cl- is placed at the location (-3, 5, -2) m. What is the (vector) force on the chlorine? which of the following causes the accounting equation not to balance? multiple choice increase assets; increase liabilities. decrease assets; increase expenses. increase assets; increase dividends. decrease liabilities; increase revenues. a wave is described by the function y(x,t) = (3.00 cm)cos[(4.00 m-1)x (5.00 s-1)t]. what is the wavelength of this wave? write a dicriptive paragrah on your "favorite person".Write in your own words An agent's appointment remains in effect until any of the following takes place, except:A) Cancellation or expiration of the licenseB) The filing of a notice of termination by the appointing insurerC) The agent attains the age of 65 For the reaction NH4Cl(aq)NH3(g) + HCl(aq) H = 86.4 kJ and S = 79.1 J/K The equilibrium constant for this reaction at 261.0 K is a simple example of a repetition control structure is the command. group of answer choices true false HELP!!! WILL GIVE BRAINLIST!!!A small segment of DNA has the following nitrogen base sequence: DNA = TAC CCT ACC ATTa) Determine the complementary mRNA codons:_____________________________________________b) What are the tRNA anticodons?_____________________________________________c) What amino acids are called for by this sequence? _____________________________________________d) What is the importance of the "start" and "stop" codons? _____________________________________________ Which statement describes super PACs?They do not get involved in elections.They support all candidates equally.They operate the same as regular PACs but with more money.They can raise an unlimited amount of money. mary works as a salesperson in a retail shoe store. of the five stages in the selling process, mary is least likely to engage in TRUE/FALSE. The growth of the NIH, which sponsors most of the biomedical research in the United States, has reflected the growth of concern about chronic degenerative diseases. What might have helped the Greek city-states to be more cooperative at the end of the Peloponnesian War? A sinusoidal voltage has a peak value of 15 V, has a frequency of 125 Hz, and crosses zero with positive slope att 1 ms. Choose the correct expression for the voltage y(t) = 15 cos(250mt-135)V s(t) = 15 cos(250mt-135) V 0 (t) = 15cos(125mt-135) V O v(t) = 15 cos(125mt +135.) V You are troubleshooting a computer that is being used primarily to serve Web pages and respond to Active Directory requests. Which operating system are you most likely using? a. Windows 10 b. Windows Server 2019 C. Mac OS X El Capitan d. Ubuntu for desktops