Because natural selection can only increase or decrease frequency of alleles that already exist in the population
hey there! so im gonna go with finch Y because of the size of the beak if you pay VERY close attention to the passage it states "into small narrow folds" for this the birds beak would have to be short and skinny which would eliminate finches y and w which leaves finches y and z.
i hope this helped and good luck :)
Answer:
it is two answers (A and d)
Explanation:
If we keep the same theory of light today we wouldn't be advanced as we are now so yes the old theory had to get updated or plain or replaced with a newer one, D is also correct because if you repeat something you will find out new things from the first time you tried it out.
Answer:
Becoming a Microbiologist typically takes about four or five years as most Microbiologists enter the field after earning a bachelor’s degree. If you choose to earn a master’s degree, it may take an additional two years to become a Microbiologist.
Explanation:
Answer:I believe it is Carbon
Explanation:The basic building block of all living things is a cell. The basic element would be carbon.
