Iguanas similar animals are members of a group called reptiles. how do reptiles differ from other animals?

a. have internal heat

b. have a exoskeleton

c. are land dwellers

d. have scaly skin hardened by keratin

In general, how long does it take to accomplish a long-term goal? a. a few days to a weekb. a few weeks to a monthc. a few months to a yeard. more than a year

If an organ has six haploid chromosomes, how many chromosomes are present. 6 12

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.