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jonny [76]
3 years ago
6

What are index fossils used to determine?

Biology
1 answer:
dlinn [17]3 years ago
8 0

Answer:

Index fossil that is also known as indicator fossil is used to determine the age of the layers of the rocks. It says that the new layer of sedimentary rocks lie over the old layer.

The deeper we go, the older the rocks we will find. Index fossil of animals that lived or survived only for a short period of time are very useful. An example of index fossil can be Ammonites that were found in Mesozoic era that was about 25-35 million years ago.

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3 years ago
Calcitonin _________ osteoclast activity, which will _________ blood calcium levels.
-Dominant- [34]

Calcitonin <u>suppress </u>osteoclast activity, which will <u>lowers</u> blood calcium levels.

<h3>What is Calcitonin?</h3>
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To learn more about thyroid gland, refer :

https://brainly.in/question/229275#:~:text=Expert%2Dverified%20answer,-question&text=Thyroid%20gland%20is%20a%20large,through%20the%20rate%20of%20metabolism.

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3 0
1 year ago
In a typical day, the body is subjected to a variety of changing conditions. The response of multiple physiological systems help
tamaranim1 [39]

Answer:

dynamic equilibrium

Explanation:

According to my research on studies conducted by various medical professionals, I can say that based on the information provided within the question this keeps us in a state of dynamic equilibrium. This is when the body stays in complete balance regardless of the constant changes, instead auto adjusts itself to adapt to the changes and maintain equilibrium.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

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Double posting doesn't really help to get responses. Its the same as before

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