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miv72 [106K]
3 years ago
15

What did you know for sure after one test? two test? three test?

Biology
1 answer:
s344n2d4d5 [400]3 years ago
7 0
Please specify your question.
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6. Classify Earth's layers based on their physical properties. *
Feliz [49]
Three main layers of the earth
1. Core the innermost part
2. Mantle the middle part
3. Crust the outermost part

<span>The special feature of the upper mantle is the asthenosphere. It is located just below the lithosphere and is made up of rock that is fluid and can move. The fluidity of these rocks powered the movement of tectonic plates on the earth's crust.  Circular convection cycles in the hot, fluid upper mantle rock move the plates over the surface of the Earth.</span>
3 0
3 years ago
Pls help me. And thank you so so much!
Andrew [12]

Answer:

A

Explanation:

got this

6 0
3 years ago
Which molecule are the condons found on?
patriot [66]

heir function is to base pair with the codon on a strand of mRNA during translation. This action ensures that the correct amino acid will be added to the growing polypeptide chain. A tRNA molecule will enter the ribosome bound to an amino acid.

4 0
3 years ago
A newborn baby dies soon after birth because her diaphragm and rib cage muscles failed to contract and she was unable to breathe
kozerog [31]

Answer:

Troponin

Explanation:

This is a complex of three proteins  (Trop C, I, T) that are responsible for muscle contraction of  the skeletal and cardiac  muscles . its binds with protein tropomysin  to lie in the grove between the actin filaments.  its prevents contraction by blocking  myosin crossbridge  in a relax muscles.Inorder to aid contractions  calcium ions binds with troponin, which leads to confrontational change.This exposes myosin on actin filaments,  leading to formation of crossbridge and therefore contraction of muscles.

Therefore if there is  a mutation in the gene that encoded Troponin, as explained above, calcium ion  will not be able to bind with tropinin, and there will be no exposure of myosin on actin filaments, no binding of  myosin on actin to cause crossbridge, and consequently no  muscle contraction,

Thus the intercoastal  muscle and diaphragm will not contract leading to death of the baby.

8 0
3 years ago
Read 2 more answers
What leads to competition between two species?
weeeeeb [17]

Answer:

Competition between two species happens when both species are using the same resources in an area. This usually happens when a new species moves into the area of the current species. Competition leads to both species being harmed.

Hope this helps! :)

4 0
3 years ago
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