Answer:
Competition happens because resources are limited. Explanation: When resources are limited in an ecosystem, the species compete with each other to come out as best among all. ... By fittest he means the ones who are capable to compete and come out as the strongest among all to survive in a given ecosystem.
Explanation:
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The age of the wood would be 17,151 year's old.
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Answer:
Most traits are determined by more than one gene. For example, skin color and height are determined by many genes. Some phenotypes however, are determined by a single gene.
Answer:
The Circulatory System is most important.
Explanation:
It is important because the circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.
