The phenotype of an animal typically does not depend on a) the genotypes of the parents. b) seasonal changes in the environment. c) the source of the animal's food. d) how genes of the animal are expressed.

In natural selection, what is actually “selected? ” a) alleles are directly selected b) genotypes are directly selected c) phenotypes are directly selected d) entire populations are directly selected

Explain why ecosystem diversity results in species diversity in a healthy biosphere

Define the apical impulse and describe its normal location, size, and duration. which abnormal conditions may affect the location of the apical impulse? explain the mechanism producing normal first and second heart sounds. describe the effect of respiration on the heart sounds. describe the characteristics of the first heart sound and its intensity at the apex of the heart and at the base. describe the characteristics of the second heart sound and its intensity at the apex of the heart and at the base.