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Cell membranes are very important for all cells, because their selectively permeable structure allows materials to enter and exit the cell through passive and active transport.
This is possible because cell membranes have a ______ which allows both surfaces of the membrane to interact with water and other molecules.
A. Carbohydrate wall
B. Protein trilayer
C. Phospholipid bilayer
Answer:
phospholipid layer....
Answer:
Phospholipid bilayer
Explanation:
I studyed this a long time ago
In a species of bird, the allele for the striped trait is recessive to the allele for the speckled trait. Suppose that a coastal bird population has a striped phenotype frequency of and an inland population has a striped phenotype frequency of The two populations are isolated and in Hardy–Weinberg equilibrium. Let represent the allele frequency of the coastal population and represent the allele frequency of the inland population. Calculate the allele frequency for the striped allele for each population. Round your answers to the nearest hundredth.
Answer:
The answer is "0.42"
Explanation:
Please find the complete question in the attached file.
Coastal community striped allele intensity [tex]= q = 0.62[/tex]
Landlocked community, strip intensity allele[tex]=q'=0.40[/tex]
Its eliminated allele frequency for movement [tex]= q"=0.42 \ in \ indoors[/tex]community And now in the sturdy vineyard optimum communities, genotype frequency of stripped characteristic (heterozygous device) in coasts[tex]=q_2=0.39[/tex]
Heritable (striped) allele frecency:
[tex]\to q=\sqrt{q_2}[/tex]
[tex]=\sqrt{0.39} \\\\ =0.624 \\\\ =0.62[/tex]
(round up to the closest cent) is therefore the only frequency of coastal people.
The genome of pulling function in host population[tex]= q'_2=0.16[/tex] Heterozygous feature regularly.
Therefore the inland community rate of recessed (striped), allele rate:
[tex]\to q'= \sqrt{q'_{2}}= \sqrt{0.16}=0.40[/tex]
Following migration;
Its percentage of coastal migrants:
[tex]m=10\% \\\\[/tex]
[tex]= \frac{10}{100} \\\\= 0.1[/tex]
Coastal population Non-immigrant percentage of coastal residents:
[tex]=1- m\\\\=1-0.1\\\\ =0.9[/tex]
Stripping coastal community of allele rate after immigration:
[tex](q")=\text{(stripping of migrant only freq)}\times (m)+\text{(stripping allele baud rate for non-immigrants)} \times ( 1-m)[/tex]
[tex]= [q \times m]+[[q' \times(1-m)]\\\\=(0.62 \times 0.1)+(0.40 \times 0.9)\\\\=0.062+ 0.36\\\\=0.422\\\\=0.42[/tex]
Which of the following would provide the best assessment of the parent material of the soil
- O horizon
- A horizon
- B horizon
- D horizon
Answer:
The correct answer is B
Explanation:
It may be made of the same mineral material that the more superficial layers were formed from, or it may be made of a distinct complex of minerals, rock forms the D horizon, hence option D is correct.
What is the parent material of the soil?An unweathered soil layer that can occasionally be found below the B-horizon or the C-horizon, if they are present.
The soil you see above this rock is made of rock that has weathered (unless the soil has been deposited from elsewhere eg floodplains contain soil that has been carried downstream in water and then deposited as the flood recedes).
Therefore, bedrock's D Horizon - Rock that has been solidified makes up this stratum (tight, unbroken, large formations of rock). Roots do not penetrate thus far down, and there is very little organic matter.
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There are the choice c and d to Help please I have no time
Answer:
I think it's c (if y is chloroplasts)
Which biome in the given table has the greatest biodiversity?
A) Temperate forest
B) Desert
C) Savannah
D) Tropical rainforest
Which category of organic molecule has the most chemical energy
Answer:
FatsExplanation:
Fats are storage of energy in form of organic molecules in our body.
Shield volcanoes are ___ stratovolcanoes
1. Equally explosive as
2. more explosive than
3.less explosive than
Answer:
Less explosive than
Explanation:
viii) Thing not associated with Aids:
: Arbovirus
Answer:
Arbovirus
Explanation:
refers to a type of virus transmitted via insects that bite and feed on blood
which statement about atmospheric pressure near earths surface is true
If you place a balloon over the neck of an empty 2 liter bottle how can you make it inflate?
shake the bottle
cool the bottle
heat the bottle
Answer:
heat the bottle
Explanation:
Explanation:
the last one heat it up i think
amino acid of CAAGGATAT
what kinds of cells can stem cells produce in the human body?
Answer:
what kinds of cells can stem cells produce in the human body?
Explanation:
Stem cells are special human cells that are able to develop into many different cell types. This can range from muscle cells to brain cells. In some cases, they can also fix damaged tissues.
Starch is an example of?
A) lipid
B) sugar
C) carbohydrate
D) proteins
Answer:
Option A
Explanation:
Starch is a example of a "lipid" or option A. Starch are also a example of a natural polymers and natural polymers are organic substances that are insoluble in water but soluble in other organic mixtures and a example of a natural polymer is starch.
Hope this helps.
If a disease caused the death of 50 percent of the individuals in the 25-40 year old age range, this would have minimal effect on the individuals in younger and older age ranges. a. True b. False
Answer:
I THINK it's b but I could be wrong
Help plz do in 15 min
Answer:
Be able to Write Well
Explanation:
While writing well is important, it's not a required oral skill
30 pointss why shouldn't we be scared of a continental drift in the plate boundary?
Answer:
because it doesnt effect us?? i think im really really sorry if it isnt correct :((
Explanation:
Which component of blood allows oxygen from the air to move from the lungs to cells of the body?
white blood cells
platelets
plasma
red blood cells
Oxygen is very essential for the survival of organisms. The component of blood enable oxygen from the environment to move from the lungs to cells of the body are red blood cells.
What are red blood cells?Red blood cells, also known as red blood corpuscles, haematids, erythroid cells, and erythrocytes.
These are the most prevalent form of cells of blood and the vertebrate's primary mechanism of supplying oxygen to body tissues through blood flow with the help of hemoglobin.
It has hemoglobin that helps for the transport of oxygen from lungs to cells of body.
Thus, the correct option is D.
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MARKING PEOPLE AS BRAINLIST
Give three Pros and Cons of Fire Suppression.
Explanation:
Robert and the white snake are
5. In 4 - 6 sentences explain the consequences of losses in biodiversity in an area.
Answer:
The consequences of losses in biodiversity have a significant impact on human health if ecosystem services are no longer able to meet social needs. Changes in ecosystem services affect livelihoods, income, local migration and, on occasion, may even cause or exacerbate political conflict.Jun 3, 2015
Explanation:
What role do the lungs play in the digestive system
Answer:
Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe. The respiratory system's main job is to move fresh air into your body while removing waste gases
Explanation:
Answer:
Lungs are not part of the digestive system.
Explanation:
Lungs are part of the respiratory system. The respiratory helps you breathe, bringing oxygen to your muscles.
(WORTH 20 POINTS!!!) Which activities occur during prophase II? Check all that apply.
DNA condenses to form chromosomes.
Each chromosome pairs up with its mate.
Spindle fibers form.
Chromosomes move to the opposite end of the cell.
The nuclear envelope disappears.
DNA condenses to form chromosomes, spindle fibers form, and the nuclear envelope disappears.
Centrosomes migrate to either pole, not chromosomes, and I couldn't find anything that said each chromosome pairs up with its mate.
Answer:
a, c, d
Explanation:
good luck!!
What are the differences between C4 plants and CAM plants?
Explanation:
1. The way they minimize water loss
2. C4 plants relocate the Co2 molecules to minimize photorespiration while CAM plants choose when to extract Co2 from the environment
Influenza is spread by contaminated water and food supplies.
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True
False
Explain the relationship between chlorophyll absorption and wavelength.
Answer:
The color of the pigment comes from the wavelengths of light that are reflected, or in other words, those wavelengths not absorbed. Chlorophyll, the green pigment common to all photosynthetic cells, absorbs all wavelengths of visible light except green, which it reflects. This is why plants appear green to us.
Explanation:
I found it on google hope it helps.
Using what you learned this week about DNA and the cell cycle, explain what can go wrong to cause cancer in an organism. Be detailed in your answer.
Answer:
Cancer is caused by accumulated damage to genes. Such changes may be due to chance or to exposure to a cancer causing substance.
The substances that cause cancer are called carcinogens. A carcinogen may be a chemical substance, such as certain molecules in tobacco smoke. The cause of cancer may be environmental agents, viral or genetic factors.
Explanation:
Plzzzzzzzzzzzzz give me brainiest
Describe an example of human activity
disrupting a small-scale ecosystem.
Answer:
deforesteration,oil drilling, farming chemicals
Explanation:
Pollution may muddy landscapes, poison soils and waterways, or kill plants and animals. Humans are usually harmed by pollution. Long-term exposure to air pollution, for example, can lead to many other health complications.
What is mitosis?
what are the stages of mitosis?
Why do cells carry out mitosis??
WILL GIVE BRAINLIEst!!!
1. mitosis is a type of cell division that results in two daughter cells.
2. some phases could be metaphases, prometaphases, and anaphases.
3. during meiosis, the cells needed for sexual reproduction divide to produce new cells called gametes.
4. Bacteria can share genetic information with each other. How does this make it more difficult to design medications that attack bacterial colonies? (4 points)
Explanation:
Genetic exchanges among bacteria occur by several mechanisms. In transformation, the recipient bacterium takes up extracellular donor DNA. In transduction, donor DNA packaged in a bacteriophage infects the recipient bacterium. In conjugation, the donor bacterium transfers DNA to the recipient by mating.
Genetic information in bacteria and many viruses is encoded in DNA, but some viruses use RNA. Replication of the genome is essential for inheritance of genetically determined traits. Gene expression usually involves transcription of DNA into messenger RNA and translation of mRNA into protein.
Answer:
The bacteria shares information with the recipient, making it harder to differentiate between the bacteria, and the host.
Explanation:
It mates with the recipient's cells and transfers genetic information. Since bacteria is living, it can share this to the host, making it less recognizable. This would make it more difficult to target only the bacteria.
An atom with either more electrons or fewer electrons than protons is a
Answer:
BEEP BEEP IAM A SHEEPI SAId BEEP BEEP IAM A SHEEPExplanation:
Answer:
[tex]\boxed{\text{\sf \Large ion}}[/tex]
Explanation:
An ion is an electrically charged atom or group of atoms formed by the loss or gain of electrons.
Which organ in the integumentary system keeps germs from entering your body?
Answer: The main organ of the integumentary system is the skin.
Explanation: The skin regulates body temperature, keeps germs from entering your body, and produces vitamin D to help absorb calcium.