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NeTakaya
3 years ago
13

Asthenosphere is the

Biology
1 answer:
____ [38]3 years ago
7 0

Answer:

solid layer of the mantle below the lithosphere

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Rocks in continental crust are as old as blank years
timofeeve [1]

Answer: Option (C)

Explanation: The rocks at the continental crust are present since a long time, and the oldest rocks so far encountered from the continental crust is approximately 4.4 billion years old.

          This has been determined by the Uranium-Lead dating method (Ur₂₃₈-Pb₂₀₆).

Oceanic rocks are estimated to be of very recent age i.e about only 180 million years old.

3 0
3 years ago
What is the name of the tear collecting structure under the skin near the bridge of the nose?
Natali [406]
The name of the tear collecting structure under the skin near the bridge of the nose is the lacrimal sac. The lacrimal sac is part of the lacrimal drainage system or the lacrimal apparatus. The tears are produced in the lacrimal gland and will drain through a hole near the lower palpebral conjuntiva called the puncta which serves as the entrance in the lacrimal system. The tears will now enter the canalicula which serves as the passage way from the puncta to the lacrimal sac. Lastly, the tears in the lacrimal sac will drain to the nasolacrimal duct and to the nose. This also explains why we get runny nose when we are crying.
6 0
3 years ago
What are ancestral character traits?
Levart [38]

Answer:

C. Traits present in the last common ancestor of a certain group of species under consideration.

Explanation:

Ancestral character traits are the one that is present in the last common ancestor and all of its descendant groups. For example, the presence of the vertebral column is an ancestral trait for all the vertebrate groups such as birds and mammals as it was present in their last common ancestor and is also shared by them.

3 0
3 years ago
DNA contains
Ulleksa [173]
DNA is located in chromosomes, not the other way around.
Every individual has different genes. If this were false, everyone would look and act the exact same.
DNA contains genes, but not any organelles.

DNA does contain the information to direct the cell.
DNA is what tells cells what to do and how and when to do it.

So the answer is D. the information to direct the cell.
7 0
3 years ago
Critical thinking includes the analysis of evidence. (points : 1) true false
enot [183]
 <span>False is a statement to a person or group made by another person or group who knows it is not the whole truth, intentionally.</span>
3 0
3 years ago
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