Which of these involves estimating the size of a population by counting only the members of the population in a particular area and then using this to estimate the size of the entire population over its entire inhabited area?

sampling

population index

counting the entire population

mark-and-recapture

Urgent in guinea pigs, black fur (b) is dominant over white fur (b). cross a heterozygous (hybrid) black guinea pig with a homozygous (purebred) white guinea pig. complete a punnett square, identify the genotype(s), phenotype(s), and probability (% and fraction) that the offspring will be black and white?