Adiploid organism has a somatic chromosome number of 16. the centromeres of the 8 homologous pairs are designated as aa, bb, cc, dd, ee, ff, gg and hh, with uppercase letters referring to the centromeres of maternal chromosomes and lowercase letters to the centromeres of paternal chromosomes. each centromere represents one chromosome. where n = the haploid chromosome number. how many different combinations of centromeres could be produced during meiosis?

a.) 8
b.) 64
c.) 256
d.) 512
e.) 6561

Energy derived from hot rocks and fluids beneath the earth’s surface is

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels