The barrier between the intracellular and extracellular fluid compartments in an animal or plant is the
A. plasma membrane.
B. walls of capillaries.
C. nuclear membrane.
D. membrane of the endoplasmic reticulum.
E. membrane of the Golgi apparatus.
A. plasma membrane.
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During receptor-mediated endocytosis, ____
a. plasma membrane receptors bind molecules to be expelled b. a small channel forms beneath the receptors c. a pit opens inside a cell d. a vesicle forms e. a vesicle is destroyed
The letter “C” in the figure above represents
a. root apical meristem. b. dermal tissue. c. vascular tissue. d. ground tissues. e. ground, dermal, and vascular tissues.
The chain termination method of DNA sequencing was developed by:
a. Jacob. b. Watson. c. Hershey. d. Avery.
e. Sanger.Viruses that use RNA as a template for transcribing DNA include __________.
A. Retroviridae B. Rhabdoviridae C. Picornaviridae D. Togaviridae E. Herpesviridae