When do mammary glands primarily develop within the breasts?
A) During infancy
B) During puberty
C) During pregnancy
D) During the last weeks of fetal development
E) At birth
C
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About 70% of the ventricle filling is achieved passively without the contraction of the atria
Indicate whether this statement is true or false.
Cell membranes are said to be
A) freely permeable. B) actively permeable. C) impermeable. D) selectively permeable. E) None of the answers are correct.
The chorion forms from the
A) endoderm. B) ectoderm. C) inner cell mass. D) placenta. E) trophoblast.
The term "exome" refers to
A) the parts of the genome that lie exteriorly along the chromosomes. B) the set of RNAs made in a particular cell type under specific conditions. C) the protein-encoding parts of the genome. D) the parts of the genome that determine sex.