While still undifferentiated, gametes are called ________.
Fill in the blank(s) with the appropriate word(s).
germ cells
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What is the most likely reason humans have only two nipples?
A. Our primate ancestors probably had litters. B. Primates generally have only one offspring. C. Having two nipples is associated with upright walking (bipedality). D. Most mammals have only two nipples. E. The number of nipples was reduced in humans due to sexual selection.
Cutaneous larva migrans results from infection of ________________________________________ larvae
Fill in the blank(s) with correct word
Select the fundamental units of chromatin.
A)nucleosomes B)chromosomes C)DNA linker segments D)histones
The infancy stage of life is considered to be over when the baby reaches ________ of age
A) 1 year B) 2 years C) 6 months D) 1 month E) 18 months