D. The umbilicus is caudal to the chin
The terms caudal and inferior are synonymous, meaning "away from the head end or toward the lower part of a structure or the body; below." The umbilicus is caudal (inferior) to the chin.
Comes from the water and co2 absorbed by the plant
The correct answer would be D. DNA evidence showing it was more closely related to mammals than to other vertebrates <span />
Enzymes are biological molecules that deep up the rate of all the chemical reactions in the body, they aid in digestion and metabolism