Food contains essential organic compounds that can be broken down in our bodies and used as nutrients. What must be present to make a molecule "organic?"


Answer: carbon

Biology & Microbiology

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Synaptic vesicles discharge their contents by exocytosis at the

A. dendrite. B. axon hillock. C. nodes of Ranvier. D. postsynaptic membrane. E. presynaptic membrane.

Biology & Microbiology

Individuals with three or more copies of each of their chromosomes are called ____

a. polyploids b. haploids c. aneuploids d. euploids e. diploids

Biology & Microbiology

Which of the following terms is mismatched with its meaning or characteristics?

A. Eumetazoa: definite symmetry; tissues organized B. Parazoa: lacks symmetry; no tissues C. Diploblastic: ectoderm and mesoderm D. Chordate: animal with notochord E. Triploblastic: ectoderm, mesoderm, and endoderm

Biology & Microbiology

A Lek is:

a. a permanent territory in songbirds. b. a mating location. c. a temporary arena in which males present themselves. d. a group of sneaker males. e. A and B.

Biology & Microbiology