Which of the following pairs of terms are synonymous in bipedal animals such as humans but not in quadrupeds (animals that walk on all four feet)?

Question

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In bipedal animals such as humans, the terms anterior and ventral are often used interchangeably to refer to the front part of the body. However, in quadrupeds, these terms have different meanings, with anterior referring to the front limbs or head, and ventral referring to the underside of the body. Therefore, D is the only pair that are synonymous in bipedal animals but not in quadrupeds.

Which of the Following Pairs of Terms Are Synonymous in Bipedal