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Leto [7]
2 years ago
7

Cell theory has 3 basic parts:

Biology
1 answer:
zimovet [89]2 years ago
5 0

Answer:

its all organisms are

composed of

cells.

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What is the difference between an atom of silver and anatom of gold?  
eduard
The right answer is C. I think, a. and d. are obviously not serious. B is not true, because Ag and Au are in the same group in the periodic table and therefore have the same number of electrons in the last level. So, they form ions with the same charge. C is true beacause Ag and Au have different numbers in the periodic table and different amount of protons and neutrons in their nucleuses. 
6 0
3 years ago
Which of the following characteristics are true for an action potential?
pickupchik [31]

Answer:

I, II, III

Explanation:

A threshold stimulus is a stimulus that is capable to produce a response in excitable tissues such as neurons and muscle fibers. At threshold potential, the outward movement of K+ and inward movement of Na+ become equal to each other. When the potential exceeds the threshold potential, more and more Na+ enter the cell to depolarize it and to allow the opening of Na+ channels. Therefore, to fire an action potential, the threshold must be exceeded.

Conduction of action potential is all or none phenomenon which means that either it occurs or it does not occur. As an impulse is passed by each successive part of an exon, it enters the refractory period during which there is no conduction of nerve impulse. It ensures the one-way conduction of impulse from the cell body to the axon terminal only.

6 0
2 years ago
What two components are found as part of an enzyme?
ioda
Apoenzyme and a non-protein
4 0
2 years ago
In non-medelian genetics, chickens have a trait for feather color. Black is dominant and so is white. The heterozygous version o
Sedaia [141]

Answer:

B. codominance

Explanation:

I know this for sure

6 0
3 years ago
As the light intensity and carbon dioxide concentration increases the rate of photsythesis ?
bulgar [2K]

Answer:

it depends

Explanation:

Different plants may have different speeds in which they produce oxygen or absorb carbon dioxide therefore photosynthesis may have different rates of speed.

7 0
3 years ago
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