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Vanyuwa [196]
3 years ago
11

12. The proteins and lipids, essential for building the cell membrane, are

Biology
1 answer:
Aneli [31]3 years ago
8 0

Answer:

A) Rough endoplsmic reticulum

Explanation:

the cell membrane is built from phospholipids which are made by the RER

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In domestic swine there is a dominant allele which produces a white belt around the body. The recessive allele produces uniform
Tomtit [17]

Answer:

The first farmer

Explanation:

The belted allele is dominant and would therefore have a higher chance of showing up in the hog.  

6 0
1 year ago
Explain why it is impossible for a man to be a carrier of a sex-linked trait.
hoa [83]

Answer:

Because it contains two different sex chromosomes

Explanation:

Man in its genome contains two sex chromosomes, X and Y, while woman contains two X chromosomes.

In order to be a carrier of a sex-linked trait, a person should have one copy (one allele) of a certain trait. For example, if a female has one X chromosome with mutation (e.g. disease carrying) and one normal X chromosome, she is carrier for the disease. But, on the other hand if a male has one X chromosome with mutation he will develop that disease.

7 0
3 years ago
Also think about some ways students, parents, and communities can cope with the impact of school closures
s2008m [1.1K]

Answer:

they can learn at home

Explanation:

3 0
3 years ago
Select the correct answer from each drop-down menu.
V125BC [204]

The nervous system and the muscle system respond to stimuli to produce motion. The skeletal movements of muscles are mostly voluntary.

Involuntary movements occur in these muscles when the nerve impulse passes from a sensory neuron to a motor neuron via an interneuron in the spinal cord.

<h3>What are Skeletal muscles?</h3>

Skeletal muscles may be defined as the muscles that fasten to your bones and authorize you to achieve a broad range of activities and operations.

Skeletal muscles control the direct movement of a person's will and are hence referred to as voluntary movement. While the spinal cord is associated with both movements directly or indirectly. It is a prolonged, delicate tubelike network liable for holding incoming and outgoing messages through the brain to the rest body.

Therefore, it is well described above.

To learn more about Involuntary movements, refer to the link:

brainly.com/question/1462286

#SPJ1

7 0
1 year ago
Describe the water vascular system
Leno4ka [110]
<span> It is a hydraulic </span>system<span> used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration. The </span>system<span> is composed of canals connecting numerous tube feet.</span>
7 0
3 years ago
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