Answer:
Nitrogen-rich oxygen-poor
Explanation:
I took the test
Answer:
Mutations and gene recombination
Explanation:
Mutations are changes in DNA sequence that can create genetic variation within the population and thus are the ultimate source of new alleles . Mutations are important for evolution because of their ability to form a new genetic variant (allele) that can be spread to the offspring. If a new variant of a trait formed by a mutation is advantageous and helps the organism to survive and reproduce, it is going to be favourable by natural selection. That variation will more likely be passed to the next generation and remain over time.
Genetic recombination is a process that occurs during meiosis between homologous chromosomes and it involves exchange of genetic material between them. As a result, offspring inherits reshuffled alleles different than their parents.
Another sources of genetic variation are random mating and random fertilization.
<span>When the earth spins in a certain direction, the ocean currents move in the opposite direction, sort of like when a car moves forward you are pulled backwards. However, there would still be wind and the gravitational pull of the moon which causes currents. The rotation of the earth just sort of "accents" these. So as a result, you would have many more smaller ocean current cycles.
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