Explain how a sprinter gets energy during a 30-second race. is the process aerobic or anaerobic? how does it
compare to a long-distance runner getting energy during a 5-kilometer race?

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands