Question

Which has been observed in the study of embryology?

A. Species whose embryos have similar traits rarely have a common ancestor.
B. Species whose embryos have similar traits always have similar body forms as adults.
C. All traits present in early embryos remain throughout development.
D. Some traits in certain embryos disappear as the embryo develops.

Answer 1

Answer: D

Explanation: Some traits in certain embryos disappear as the embryo develops.

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Answer 2

The correct answer is D.

Step-by-step explanation:

Scientists observed and discovered that some traits in certain embryos disappear as the embryo develops.

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