<u>Answer:</u>
<em>The exposure of sea bed or undersea surface is called sea-level regression.</em>
<u>Explanation:</u>
Sea-level regression occurs when sea level drops down due to several climatic changes. This triggers extinction of several species. There had been several mass extinctions in the past due to <em>sea-level regression.
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<em>Chances of survival of shallow</em> water species become feeble when the sea level falls. In the case of mass extinctions regression can be seen as a symptom and not a cause.
Marine transgression is the opposite <em>phenomena of regression</em> where sea level rises and covers the land which was previously above the sea level.
Lysosomes, which is the organelle that cleans the cell
my·o·fi·bril
Dictionary result for myofibril
/ˌmīōˈfībrəl,-ˈfib-/
noun
noun: myofibril; plural noun: myofibrils
any of the elongated contractile threads found in striated muscle cells.
Answer: december,january, february
Explanation:
I think the correct answer from the choices listed above is option D. Human height is determined by several genes located on different chromosomes which is an example of a polygenic trait. These traits are being controlled by more than one gene. Hope this answers the question.