A. everyone is influenced by them negatively.
Answer:
Conserve energy
Explanation:
Sloths are considered as arboreal mammals *( that is living on trees) and they have very less muscle mass, which is about 30 % lesser than that of similar sized mammals. This is because their muscles are made up of slow-twitch fibers, which provide them a lot of power to withstand any stress while not using a lot of energy.
Therefore, their lesser muscle mass help them in conserving energy
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The right answer has to do with birth defects and in this case the defect wouldn't be hereditary nor genetic so i think the best answer is (D) underdeveloped lungs
