A squirrel population is sampled using the mark and recapture method. Scientists captured and marked 40 squirrels. The next week, they captured 20
squirrels, 10 of which had marks. What is the estimated population size?

i believe it would be the lungs.

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation:

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.

i dont know it at allnow im just getting points at this pint