What fills the space between meninges, a central canal in the spinal cord, and brain ventricles?

a. blood
b. plasma
c. interstitial fluid
d. unmyelinated axons
e. cerebrospinal fluid


e

Biology & Microbiology

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Which organic molecule functions as a subunit of DNA and RNA?

a. Fatty acids b. Monosaccharides c. Nucleotides d. Amino acids e. Polypeptides

Biology & Microbiology

What best describes an inappropriate immune response to normal body tissues?

a. allergy b. immunodeficiency c. anaphylactic shock d. autoimmune disease e. septic shock

Biology & Microbiology

The transports water and dissolved minerals from the roots of the plant to the shoots of the plant.

A. epidermis B. stomata C. phloem D. xylem E. guard cells

Biology & Microbiology

In the lac operon, the protein that binds to the operator to prevent transcription is

the repressor. RNA polymerase. DNA polymerase. the promoter. lactose.

Biology & Microbiology