Improvement in medical care and the development of vaccines and
antibiotics is known as the
Revolution.

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.

answer: b

coz red blood cells marrow and circulates the body for 120 days.