If a human trait exists, then it must have been adaptive to human survival at some point

In terms of self-evaluation, the correlation between perceived physical appearance and self-esteem

A) ranges from .52 to .80. B) is apparent from early childhood through adulthood. C) is found across different populations, ethnic groups, and countries. D) all of the above.

Which of the following is the correct sequence of events that follow fertilization of an egg?

a. morula, zygote, blastocyst, fetus, embryo b. blastocyst, zygote, morula, embryo, fetus c. zygote, morula, blastocyst, embryo, fetus d. zygote, morula, blastocyst, fetus, embryo