How does geological time help scientists keep track of events in Earth’s history?

1 answer:

6 0

They use fossils and the Earth's layers to help them which is also an example of geological time. The layers tell them the history by how deep they are along with the fossils. Since the lowest layers, for example, are the oldest, scientists use this to determine Earth's age and history.

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Plz help ASAP! THANK YOU

marysya [2.9K]

Answer:

According to the diagram, what is occurring in step 7 is cytokinesis, with the separation of two daughter cells, following cell division.

Explanation:

Cytokinesis is a process that occurs at the end of mitosis or meiosis, being the final step of cell division. This mechanism allows the separation of the two daughter cells, with equal distribution of cytoplasm and formation of cell membrane, differentiating into two independent cells.

In the diagram it can be observed (step 7) that after the division process —in yellow— two arrows pointing to two cells are evident, which implies the process of cytokinesis.

Prior to the cytokinesis process, karyokinesis occurs, which is the separation of nuclei and formation of the nuclear membrane.

In animal cells, karyocinesis occurs by the effect of a ring of actin and myosin that helps to force the separation. In the plant cell, the fragmoplast is formed, a septum that induces the separation of the daughter cells.

The other options are not correct because:

Cell growth occurs in G1 phase.
Cell preparation occurs in interphase.
DNA replication occurs in S phase.
Mitosis is represented in yellow, and involves 4 phases.

4 0

2 years ago

I need help ASAP!!!!

VladimirAG [237]

Answer:

The answer to your question is: letter C

Explanation:

From the graph, we can conclude that catalase has a low activity at low temperatures. Activity increases a little at 30°C and this process is the highest at 40°C, after this temperature, activity disminishes again.

Options:

A. This option is wrong because the number of bubbles at this temperatures is low, maybe the enzyme is already denatured.

B. This answer is wrong, at 30°C the enzyme shows a low activity.

C. This answer is correct because at this temperature the enzyme produces the higher amount of bubbles.

D. The activity of the enzyme at 0°C was not tested.

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2 years ago

Plz help. i want to go play fortntie!! lol

seraphim [82]

It's the 3rd one
(^_^♪)

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Read 2 more answers

Did ashley williams have thyroid surgery?

Gelneren [198K]

Ashley Williams is an American film, television, and theater actress. Ashley Williams didn't perform any thyroid surgery. She only tweeted about what thyroid surgery is last 9 of January 2012. However, she broke her silence about her miscarriage and how she discovered it during an outing.

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2 years ago

Which of these structures contain digestive enzymes?

Gala2k [10]

Answer:

you didn't finish the question

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2 years ago