Metamorphic rocks are formed from existing rocks, when it is exposed to great heat and pressure. This process would destroy any fossils inside the already existing rock.
Answer:
Heart
The
striated muscle tissue with
relatively small cells that have one or two nuclei can be found at the heart. The intracellular calcium signaling is an intrinsic component
of signal transduction pathways that regulate vital aspects of muscle function
including excitability, force production, protein synthesis, and energy
expenditure that occurs in the striated muscle tissue of the heart.
Speed is the rate of change in distance.
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C)temperature and rainfall
Explanation:
Temperature and rainfall are the most important physical factors that shapes the characteristics of an ecosystem.
Temperature is the degree of hotness or coldness of a place. It is mostly as a result of the solar radiation it receives.
Rainfall is a form of precipitation in which water falls under gravity in liquid form.
They are both by far the most important factors that shapes ecosystems.
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He wanted to see how different traits passed through the pea plants he grew. To do this, he needed to cross polliante so that their were multiple parents affecting the genes of the new pea plant. If he self pollinated, all the new baby pea plants would Look the same as their parents and we wouldn't know as much as we do about genetics now