Which of the following reptilian features enabled them to adapt to a terrestrial environment?
A. Two pairs of paired limbs, a septum that divides the ventricle, and well developed kidneys
B. A dry skin, ectothermy and external fertilization
C. Live birth, efficient excretion and two pairs of limbs
D. Skin that allows for respiration, a septum that divides the ventricle and an amniotic egg
E. Efficient respiration, ectothermy and external fertilization
Answer: A
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How many of the 13 essential vitamins are water soluble and how many are fat soluble?
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