This embryonic structure will become the embryo's part of the placenta

A) morula B) trophoblast C) zygote D) corona radiata


Answer: B

Biology & Microbiology

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When a species consisting of a single large population slowly evolves over many generations into a new species, this an example of

A. synapomorphy. B. cladogenesis. C. anagenesis. D. monospeciation. E. horizontal gene transfer.

Biology & Microbiology

Which of the following is not a source of genetic variety?

A. crossing over B. synapsis C. random fertilization D. independent assortment

Biology & Microbiology

What is a phospholipid composed of?

A.) a polar head and a nonpolar tail B.) a nonpolar head and a polar tail C.) a polar head and tail D.) a nonpolar head and tail

Biology & Microbiology

An example of ________ involves pigmentation in Mirabilis jalapa

A) nucleolar inheritance B) gene dosage effect C) X-linked recessive D) organelle heredity E) maternal effect

Biology & Microbiology