Answer:
Phospholipid layer
Explanation:
The plasma or cell membrane is the outer covering of prokaryotic (bacteria) and eukaryotic (plants and animal) cells that provides support to the cytoplasm. The plasma membrane is made up of components like phospholipid layer, proteins, etc. However, the PHOSPHOLIPID LAYER component of the plasma membrane confers its SEMI-PERMEABILITY upon it.
The phospholipid layer consists of a hydrophilic i.e. water-loving region (phosphate head) and hydrophobic i.e. water-fearing region (fatty acid tails) that allows it to selectively control the flow of molecules into and out of the cell.
connections between plant cells which allow the cytosol to pass through them.
The systems in the body are continuously monitoring and adjusting to maintain homeostasis. True False
Answer:
it is true
Explanation:
pls give brainly if right
Which lettered location has the highest elevation?
1 A
2 B
3 С
4 D
Answer:
A
Explanation:
Bc it is the highest point in choices
5. What benefits does fitness water have for an athlete?
Answer:
Water fitness* adds more resistance to your movement which requires more energy to do things
Explanation:
I would say that fitness water is beneficial because it hydrates the body. Also, when you're hot it can cool you down.
which is most likely a source of air pollution?
A.littering
B.CFCs
C. oil spill
D.runoff
Quick this is a timed exam
Answer:
B) CFCs
Explanation:
chlorine in the CFC is very harmful to the ozone layer
Air pollution is the contamination of the air and its surroundings due to air pollutants. Chlorofluorocarbons (CFCs) are most likely a source of air pollution. Thus, option B is correct.
What are Chlorofluorocarbons?Chlorofluorocarbons (CFCs) are nontoxic chemicals that contain chlorine, fluorine, and carbon. They are largely used in the manufacturing of refrigerants, foams, sprays, etc.
Chlorofluorocarbons destroy the protective ozone layer of the earth and affect its ability to shield the harmful UV rays from the sun. Due to their dangerous effect on the ozone, they are banned.
They are emitted and get deposited in the earth's atmosphere causing the greenhouse effect that causes the melting of the ice and increases in the sea level to rise in temperature.
Therefore, chlorofluorocarbons are the source of air pollution.
Learn more about chlorofluorocarbons here:
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Study the given flow chart carefully. Cotton and silk are represented by the letters _____ and ____respectively.
P, Q
Q, R
Q, S
R, S
Light energy is converted into this type of energy usable by all organisms
Answer:
photosynthesis
Explanation:
What is the difference between a tortoise and a turtle
Turtles can be aquatic, semi-aquatic, or mostly terrestrial. Tortoises are turtles that live on land and aren't equipped for water.
(hope this helps ^^)
Answer:
a tortoise is a land dwelling animal and can't not swim way to heavy and a turtle is made for water built to move through water and not as capable of being on land like a tortoise
Explanation:
Which of the following circumstances is responsible for generating particulate matter?
airborne, odor-causing pathogens
gases escaping from manure piles
combustion of manure piles in hot weather
evaporation from contaminated groundwater
Answer:
combustion of manure piles in hot weather
Explanation:
A manure piles are heap of animal waste or excreta mainly the waste from horse manure and the bedding which is stored to decompose and reduce in bulk.
Particulate matter is a mixture of small particles as well as liquid droplets that causes pollution and is harmful to health.
Burning of manure piles can cause to fly the dust and the dirt in the animal manure in the air and it leads to particulate matter suspended in the air.
Directions: Select the correct term or terms from the table. Different organisms have different traits, or characteristics. Some of an organism's traits are inherited from the organism's parents, while other traits are more strongly influenced by the organism's environment. Among most animals, which of the following traits are usually directly determined by genes inherited from the organism's parents? sex body weight knowledge blood type
Answer:
The correct answer is - sex and blood type.
Explanation:
Different organisms have different traits some are passed from the parents and other traits are developed by environmental influences. The traits that are passed from parents to the offspring are determined by the genes they inherited from the parents. In humans, sex is determined by the genes that present on the chromosomes and make the chromosome X chromosome or Y chromosome. The presence of the Y chromosome determines maleness.
Similarly, the blood group is determined by the genes, there are three alleles of the ABO gene present on chromosome 9; A. B. and O each allele code for a different antigen which helps them categorizing in blood groups.
A student is asked to design an investigation which will cause an object to have motion that matches the graph she was given.
Which of the following investigations would yield results which match the graph? (DOK 3, AKS 8a)
O A The student will push a ball up a ramp and allow it to roll back down.
OB. The student will push a ball on a smooth, flat surface and then on a rough surface.
OC. The student will push a ball on a smooth, flat surface, it rolls at a constant speed for a short time and then down a rough hill.
D. The student will release a ball down a smooth hill, it rolls at a constant speed for a short time, and then rolls onto a rough surface.
The answer is A. The answer's A because the ball is still in motion.
As you drive through mountains, radio stations get harder and harder to hear. This is because the waves must pass through the valleys as they are blocked in by the mountains. This is an example of
Question 1 options:
Reflection
Diffraction
Absorbtion
Refraction
Answer:
diffraction
Explanation:
i dont remember any of these terms so im going off their connotations here
Answer:
Refraction
Explanation:
Because the waves are not able to go through or pass so they change direction.
The U.S, poultry industry is primarily in
O midwest
O Southwest
O Northwest
O Northeast
O Southeast
Answer
Northeast
Explanation:
Poultry production, consisting of broilers and egg-laying flocks, is located primarily in the eastern third of the state. More than 211.3 million broiler chickens were produced on Oklahoma farms in 2019, generating $729 million to the state's agricultural cash receipts.
In pea plants the allele for tall plants in dominant to the allele for short plants, and the allele for purple flower colour is dominant to the allele for white flower colour. What is the genotype of a short plant produced from a cross between a true-breeding purple flowered pea plant and a true-breeding white flowered pea plant? *
1.TTPP
2.ttpp
3.ttPP
4.ttPp
5.TtPp
Answer:
The correct answer is - 4. ttPp
Explanation:
Given - tall is dominant over short pea plant
let assume T is dominant and t is short which is recessive
Similarly, P for dominant purple flower and p for white flower
The offspring has a short plant which means it has both t allele or recessive allele for the height of a plant by the cross of a true-breeding purple and true-breeding white:
P P
p Pp Pp
p Pp Pp
This means the offspring would have a heterozygous case for the genotype of the flower of the pea plant
Thus, the correct answer is ttPp
A. If you have several samples of liquid and are told that one contains living organisms,
what type of in vestigation would you do to determine which liquid contains the living
things?
Answer: (Aerobic and anaerobic respiration)
Explanation:
Respiration by living organisms can be investigated by carrying out experiments to show the production of carbon dioxide and heat.
Investigating carbon dioxide production
Limewater turns milky in the presence of carbon dioxide. It can be used to show that exhaled air contains more carbon dioxide than inhaled air.
Carbon dioxide dissolves in water to form a weakly acidic solution. Hydrogencarbonate indicator is used to show the presence of carbon dioxide in solution. It is:
red at neutral pH (no carbon dioxide)
yellow at low pH (carbon dioxide present
What digestive system component synthesizes bile?
Bile (a breakdown product of the red blood cell pigment, hemoglobin) emulsifies fat.
The
synthesizes bile.
Answer: liver
Explanation:
just got a 100
the question is asking “what organ makes bile”
what is the major source of oxygen for the earths atmosphere
Answer:
marine plants
Explanation:
True or False: An element is a substance that is made up of one type of atom.
Answer: True.
Explanation:A pure substance is something that occurs in nature. An element is made up of one type of atom only and cannot be split further. A compound has the combined properties of the elements from which it is made. Atoms show the macro properties of an element.
Which action would cause global temperatures to decrease?
Answer:- planting trees
- solar, nuclear, and geothermal
(sorry if im wrong)
:(
In mouse, genes X, Y and Z are on chromosome 2. The map of genes X, Y and Z is:
X----------------Y-------------------------Z
20 m.u. 30 m.u.
You cross an individual with genotype XXYYZZ to an individual with genotype xxyyzz, and F1 progeny are collected. Assume interference between regions (X-Y and Y-Z) is 100%. When an F1 individual produces gametes, what proportion of its gametes would have xyz genotype?
a. 10%
b. 20%
c. 25%
d. 30%
e. 40%
f. 50%
g. 0%
h. None of these above
In F1 we will get 100% XxYyZz
each of these organism has two chromosomes that look like this
X..........20..........Y...............30...............Z
x..........20..........y...............30...............z
Those two chromosomes are homologous
we want a gamete that contains the second chromosome where crossing-over didn't occur. The distance between the genes of the chromosomes in map units is equal to the frequency of recombination in percentage. Therefore there is a 20% that x and y will recombine and a 30% chance that y and z will recombine. We want a chromosome that is not recombined.
The possible gametes are
XYZ XYz XyZ Xyz xYZ xYz xyZ xyz if the genes were on different chromosomes xyz would be 1/8 or 12,5%
Since there is a 20% that the genes x and y will recombine that means there is a 80% chance that they won't and since there is a 30% chance that the genes y and z will recombine that means there is a 70% chance that they won't.
80%*70%=56% chances that the genes won't recombine. But, there are two non-recombinant gametes:XYZ and xyz therefore the chances for xyz is 56/2=28%
In mouse, genes X, Y and Z are on chromosome 2. The map of genes X, Y and Z is: X----------------Y-------------------------Z, When an F1 individual produces gametes, we will get 100% gametes would have xyz genotype that is XxYyZz, it can be represented as
X..........20..........Y...............30...............Z
x..........20..........y...............30...............z
What is chromosome ?A chromosome can be observed as a thread-like structure present in the nucleus of cells such as plant, animal and human cells, composed of DNA (Deoxyribonucleic acid) molecule and histone proteins.
The three major components, DNA, proteins and RNA, the content of the DNA ranges from 30 to 40 % whereas proteins from 50 to 65%, and small amount of RNA ranges from 1 to 10%.
Two types of protein present such as histone and non-histones proteins, histone content is more (90% of total protein), whereas non-histone is content is less (around 10% of total protein).
The histone protein is basic, the DNA is acidic which can be neutralized; DNA is present in two forms such as Euchromatin and Heterochromatin.
20% that x and y will recombine and a 30% chance that y and z will recombine. We want a chromosome that is not recombined.
The possible gametes are XYZ XYz XyZ Xyz xYZ xYz xyZ xyz if the genes were on different chromosomes xyz would be 1/8 or 12,5%
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Which of the following animal welfare practices would be most useful for reducing disease?
giving animals more space
supplementing the animals’ feed
adding environmental enrichments
changing how animals are handled at slaughter
Answer:
The answer is "supplementing the animals’ feed"
Explanation:
Animal welfare implies how a creature is adapting to the conditions in which it lives. An animal is in a decent condition of welfare on the off chance that it is solid, agreeable, very much fed, protected, ready to communicate intrinsic conduct, and on the off chance that it isn't experiencing disagreeable states, for example, torment, dread, and pain. Great animal welfare requires infection avoidance and veterinary treatment, proper asylum, the board and sustenance, sympathetic taking care of and empathetic butcher or murdering
Answer:
giving animals more space
Explanation:
correct on ED2022
In the past 250 years how many volcanoes have erupted?
Answer:
Graph showing known historically active volcanoes, number of volcanoes reported to be active each year, and population. The line labeled "Known Historically Active Volcanoes" (right scale) is the cumulative number of volcanoes with an historically recorded eruption by that year. "Volcanoes Active Per Year" since 1400 CE (black line) and 10-year running mean of same data (thick red line) is also based on reported eruptions (those with uncertainty dates greater than 1 year are not included, nor are uncertain eruptions). "Population" (right scale) is the world's estimated human population; data from McEvedy and Jones (1978) and (since 1750) Population Reference Bureau, Washington, D.C. See text for further explanation.
A dramatic increase in both the number of historically active volcanoes and recorded eruptions took place about 1500 CE. These resulted in part from the great Spanish/Portuguese marine explorations – the Age of Discovery – around the end of the 15th century, when explorers opened Latin America and much of the western Pacific to European record-keeping. Perhaps equally important was the development and widespread distribution of the printing press in the late 15th century, markedly increasing the likelihood that new volcanological records would survive. Through the 17th and into the early 18th century the recognition of additional active volcanoes generally corresponded with steadily increasing eruption reports. By the 18th century global trade was flourishing, the Industrial Revolution was under way, and the heightened reporting of eruptions noticeably accelerated the discovery of new volcanoes. The list has continued to grow, with several important volcanic regions such as New Zealand, Alaska, and Hawaii being unrepresented until the last 250 years.
Explanation:
please mark me as brainlest answer hope this helps
which best describes organs in an organ system
Answer:
Explanation:
An organ is a group of different tissues that work together to do a particular job. Organs are grouped together into organ systems. Examples of organ systems include the circulatory system and the digestive system. The human body is made up of many cells, so it is an example of a multicellular organism.
What are the different methods used to separate the components of a
mixture at your home? Write with an example for each.
Answer:
1. Mixtures can be separated using a variety of techniques.
2. Chromatography involves solvent separation on a solid medium.
3. Distillation takes advantage of differences in boiling points.
4. Evaporation removes a liquid from a solution to leave a solid material.
5. Filtration separates solids of different sizes.
Explanation:
thanks
DDT is a pesticide that has been used worldwide over the past 50 years. DDT is used to prevent insects from destroying crops and as an insecticide used to kill disease-carrying insects. In 1972, the U.S. Environmental Protection Agency (EPA) began monitoring DDT usage. They conducted studies that analyzed ice layers from existing glaciers and these studies revealed that DDT was at its highest recorded levels 10 years after it was banned from being used. Which statement best describes why environmental monitoring for DDT was performed? Group of answer choices
A. To evaluate in what ways DDT impacts an ecosystem
B. To determine if DDT would cause serious harm to human populations
C. To predict if all chemicals are harmful to local pollinator insect populations
D. To ensure all chemicals are banned as soon as possible to protect public health
Answer:
I think B or C but mainly C
Explanation:
Pigmented eyes (P) are dominant to non-pigmented (p), and dimpled chins (D) are dominant to Non-dimpled chins (d). A pigment-eyed, dimple-chinned man marries a blue-eyed woman without a dimpled chin. Their firstborn child is blue-eyed and has a dimpled chin. What are the possible genotypes of the father
Answer:
PpDD and PpDd
Explanation:
Pigmented eyes (P) are dominant to non-pigmented (p), and dimpled chins (D) are dominant to Non-dimpled chins (d).
The possible genotypes of a pigment-eyed, dimple-chinned person would be PPDD, PpDd, PPDd, PpDD while a blue-eyed person without a dimpled chin would have the genotype ppdd.
The genotype of a blue-eyed, dimpled chin child would be either of ppDd or ppDD, but in this case, the mother is ppdd and as such, the child cannot have two copies of D allele. Hence, the genotype of the child can only be ppDd.
In order for the child to have blue eyes (pp), it means that the father has to have the non-pigmented allele (p). This also means that the father is heterozygous for eye pigmentation (Pp).
Hence, the genotype of the father is now limited to PpDD and PpDd.
Cells that perform a specific function in an organism __
A. preform all of the functions
B. are specialized
C. are all the same
D. can survive on their own
ICD-10-CM code M19.14 Post-traumatic osteoarthritis, hand contains an Excludes2 note for post-traumatic osteoarthritis of first carpometacarpal joint (M18.2-, M18.3-). The Excludes2 note means that __________.
Answer and Explanation:
It means that there is a disease that was not included in the diagnosis, that is, it was not mentioned, but presents itself in the patient and is part of the represented code. This means that the patient can have both diseases at the same time and that more tests should be done to confirm that this is really happening.
Question 18 OT 25
Scientists study how the continents move. Why might scientists use a model
to show this movement?
A. It is too dangerous to observe directly.
B. It is too fast to observe directly.
C. It is too slow to observe directly.
O D. It is too complex to observe directly.
Answer:
A. It is too dangerous to observe directly.
Hope this helps! :D
At what pH levels are enzymes in the human body productive?
Answer:
Between ph7 and ph 11
Explanation:
The optimum pH level for this is at pH7 because the number achieved was 350 product molecules per Minute