The kidney is referred to as an excretory organ because it excretes wastes. It is also a major homeostatic organ because it maintains the electrolyte , and balance of the blood.

Round peas are dominant to wrinkled. what would you cross a round pea with to determine if it were heterozygous or homozygous dominant? why? ?

In which situations is the principle of cross-cutting relationship useful in determining relative age?

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.