What is a carpel?

A. The pollen-producing reproductive structure
B. The structure that contains filaments and anther
C. The endosperm that provides nourishment to the embryo
D. The egg-producing reproductive structure


Answer: D

Biology & Microbiology

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Pollen is produced by the:

A. stigma. B. ovary. C. stamen. D. style. E. petals.

Biology & Microbiology

When Gregor Mendel first started his genetics experiments, he ____

a. knew about the existence of genes b. knew that some plants "breed true" c. knew that genes were responsible for observable traits d. allowed the pea plants to self-fertilize e. expected all true breeding crosses to produce offspring with intermediate phenotypes

Biology & Microbiology

Gaps in the myelin sheath are referred to as:

a. synapses. b. neuroglia. c. microglia. d. Schwann cells. e. Nodes of Ranvier

Biology & Microbiology

The net migration of alleles into or out of a population from neighboring populations is called

A) gene flow. B) genetic drift. C) sexual selection. D) stabilizing selection. E) coevolution.

Biology & Microbiology