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I am Lyosha [343]
2 years ago
8

A) What are the bases of mRNA coded for by this section of DNA, before the

Biology
1 answer:
aliina [53]2 years ago
8 0

Answer: CAG

Explanation:

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What is and exoskeleton and explain in full clear sentences please
LekaFEV [45]

An exoskeleton is the outer skeleton of an animal to protect them. An exoskelton is also called a shell.

7 0
3 years ago
Which describes an oxidation reaction that occurs during cellular respiration?
Yuri [45]

Answer: <u>Option 4; Oxygen gains electrons and hydrogen to form water. </u>

Respiration is a process where glucose is used and energy is released stored in this molecule. Oxygen is used during respiration as well and it gains the electrons and hydrogen to form water. And, gain of electrons is an oxidation reaction. So answer is option 4.

Since, oxygen is consumed during respiration, option 1 is incorrect.

Loss of electrons is reduction, so option 2 is also incorrect.

Glucose is used in respiration, thus option 3 is incorrect.

3 0
3 years ago
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Which description of bone cells is INCORRECT? a. Osteogenic cells can differentiate into osteoclasts. b. Osteoblasts secrete col
Misha Larkins [42]

Answer:

a. Osteogenic cells can differentiate into osteoclasts

Explanation:

Osteoblasts are the cells that are formed from osteogenic cells. The osteogenic cells enter the process of bone formation. There is a secretion of organic compounds and salts to form osteoblast. Osteoclasts are the very large cells that are formed when many monocytes fuse together and are concentrated in endosteum. Osteoclasts are the cells responsible for bone resorption.

3 0
3 years ago
How do oxygen and carbon dioxide cross capillary walls?
muminat
The answer is diffusion.

The most important mechanism that enables oxygen and carbon dioxide (but as well other small molecules such as glucose, amino acids, wastes) across capillary walls is diffusion. Diffusion is a net movement of molecules through some barrier from an area of high concentration to the area of low concentration. When blood rich in oxygen reaches capillaries close to the cell, now there <span>is </span>more oxygen in the capillaries than in the cells and by diffusion, oxygen will pass capillary walls and enter the cell. Since blood in capillaries lacks in carbon dioxide, it will easily leave the cells and enter the blood. It should be taken into consideration that capillary walls may be fenestrated, continuous, and discontinuous which can affect movement through them. 
4 0
3 years ago
A difference between food chains and food webs is that food webs are...<br> O bigger<br> Smaller
Oksanka [162]

Answer: Food webs are bigger, food chain is smaller.

Explanation:

Food webs are multiple food chains into one web.

7 0
3 years ago
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