The concentrations of ions are very different inside and outside a nerve cell due to _____

A) osmosis
B) diffusion
C) sodium-potassium pumps
D) symports and antiports


C

Biology & Microbiology

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Ciliates include the genus ____

a. Euglena b. Anopheles c. Trichomonas d. Paramecium e. Entamoeba

Biology & Microbiology

If you could increase the availability of O2 to the muscle cells of scorpions, you might expect respiration rates to

a. increase. b. remain relatively constant. c. decrease.

Biology & Microbiology

In the process known as __________, the fate of a cell is influenced by interactions with neighboring

cells. a. determination b. induction c. apoptosis d. differentiation e. pleiotropy

Biology & Microbiology

All human DNA is nearly identical. Only about ____ of the DNA sequences of two people will differ. Even so, this difference still translates to roughly ______ base-pair differences.

A) 1 percent; 3 million B) 0.1 percent; 3 million C) 1 percent; 10 million D) 0.1 percent; 100 E) 0.1 percent; 1 million

Biology & Microbiology