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Verizon [17]
2 years ago
7

Rock Cycle here’s my cell theory notes

Biology
1 answer:
White raven [17]2 years ago
3 0

Answer: In biology, cell theory is a scientific theory first formulated in the mid-nineteenth century, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells. Cells are the basic unit of structure in all organisms and also the basic unit of reproduction.

The three tenets to the cell theory are as described below:

All living organisms are composed of one or more cells.

The cell is the basic unit of structure and organization in organisms.

Cells arise from pre-existing cells.

The theory was once universally accepted, but now some biologists consider non-cellular entities such as viruses living organisms, and thus disagree with the first tenet. As of 2021: "expert opinion remains divided roughly a third each between yes, no and don’t know".As there is no universally accepted definition of life, discussion will continue.

Explanation:

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it is often useful for scientists to study a population of cells that are all at the same stage of the cell cycle. for example,
inn [45]

It is often useful for scientists to study a population of cells that are all at the same stage of the cell cycle.

<h3>Why the discovery of cyclins and cdks was enabled?</h3>

The discovery of cyclins and cdks was enabled by studying frog eggs that divided synchronously after fertilization; extracts from the embryos were thus representative of the cell-cycle stage at which the extract was made.

Researchers have devised means to synchronize asynchronous populations of cultured cells. for example, serum starvation deprives cells of mitogens and blocks cells in the g0/g1 phase of the cell cycle.

Therefore, It is often useful for scientists to study a population of cells that are all at the same stage of the cell cycle.

Learn more about  cell cycle on:

brainly.com/question/15876101

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7 0
1 year ago
Enzymes______the activation energy threshold required to start a chemical reaction.
vivado [14]
I believe it's Lower.


Hope this helps!
5 0
3 years ago
1. Insects Have three pairs of legs or are the ______ arthropods.
dedylja [7]

Answer:

1. Six legged

4. Spiders

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10.worm

Explanation:

8 0
3 years ago
Which allows the ear to detect sound?
Butoxors [25]
Our ears use vibrations to detect sound.

Inside our ears we have an eardrum, this eardrum is connected to three small bones known as Ossicles. When something makes a sound is creates a vibration that makes the eardrum vibrate and pass this vibration through the Ossicles to the Co<span>chlea which allows us the comprehend the sound something is making.

I hope this helped. Have a great day!</span>
6 0
3 years ago
Which of the following scenarios describes an example of epistasis?
Colt1911 [192]

What o uawant me to do exactly

3 0
3 years ago
Read 2 more answers
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