Need A Full Stated Answer.

Part A: Explain why the average beak thickness changed between wet and dry years.

Part B: Explain how beak thickness would have changed during the next ten years (1986 to 1996, if those years were wet years.

Answer part A)

During the wet years, small seeds are produced which are easy for the birds to breakdown. However, in the dry years, large and tough seeds are produced which cannot be broken down by small beaks of the birds.

The graph illustrates that during the wet years, the thickness of the beaks of the birds reduced as there were more, small seeds to feed on. During the dry years, the thickness of the beaks increased as the seeds became tough.

Answer part B)

If the next ten years turns out to be wet years, then through evolution the thickness of the beaks will continue to reduce as these years will support the birds which have small beaks.

humans, along with other animals and plants, have linear chromosomes that are arranged in pairs within the nucleus of the cell. the only human cells that do not contain pairs of chromosomes are reproductive cells, or gametes, which carry just one copy of each chromosome.

a scenario where a cell may be needed to perform a form of endocytosis is when transporting large molecules. a scenario where a cell may be needed to perform a form of exocytosis is when releasing the large molecule from the cell.