Hijelp
explain how animals in vertebrates are classified into further subgroups on the basis of : -
a) kinds of exoskeleton or endoskeleton
b) structure of heart
c) respirating organs
d) method of reproduction

Abiology teacher asks students to give examples of genetic variations that support the idea that changes in a population’s environment affect genetic variation. which is the least supportive example? a.changes in genetics in human populationsb.antibiotic resistance in bacteria populationsc.pesticide resistance in garden insectsd.changes in the color of the peppered moth population in england