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MA_775_DIABLO [31]
3 years ago
8

What makes up the cell membrane

Biology
1 answer:
WINSTONCH [101]3 years ago
6 0

The cell membrane is made up of a phospholipids that are arranged into two layers which are called lipid bilayer.

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A woman with a straight hairline has as child with a man who is heterozygous
Naddika [18.5K]

Answer:

aa

Explanation:

A widow's peak is the dominant genotype so one must not have that trait. If it was presented then the woman would have the genotype.

A widow's peak is dominant so the man would be either AA or Aa. Since it stated that his is heterozygous (Hetero meaning two different), his genotype would be Aa (again since a widow's peak is the dominant, it only needs one dominant genotype)

4 0
3 years ago
Sharks have skeletons made of _____.<br> bone<br> cartilage<br> spongy tissue<br> scales
nataly862011 [7]
Cartilage hope this helps ;D
3 0
3 years ago
Read 2 more answers
Genetic variety in organisms is created through
stellarik [79]
Meiosis.

Meiosis gives crossing over genes causing the organism to have genetic variety
3 0
3 years ago
A researcher places dogs in a cage with metal bars on the floor. the dogs are randomly given electric shocks and can do nothing
kifflom [539]

The answer choices to this question are:

<span>a.       </span>Learned helplessness.

<span>b.      </span>Stimulus discrimination. 

<span>c.       </span>Aversive conditioning. 

<span>d.      </span>Vicarious learning.

The best answer choice is:

<span>a. </span>Learned helplessness

<span>Explanation: Learned helplessness was studied by Seligman as a potential animal model of depression. Learned helplessness occurs when people or animals feel helpless to avoid negative situations. Martin Seligman first observed learned helplessness when he was doing experiments on dogs. He noticed that the dogs didn't try to escape the shocks if they had been conditioned to believe that they couldn't escape.</span>

4 0
4 years ago
Read 2 more answers
For a simple dominant/recessive trait, do the offspring of parents with identical traits (that are visible) always look like­ or
Bess [88]
No they do not since whilst the parents may exhibit a certain trait this does not mean that they are necessarily homozygous for that trait, and thus if for example we had two heterozygous individuals who had brown eyes, with B denoting brown eyes as the dominant trait and b denoting blue eyes as the recessive trait, their offSpring could have the genotypes BB, Bb or bb - we can see here that whilst the chance of having brown eyes is higher, the offspring may have either brown or blue eyes.
4 0
3 years ago
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