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
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Ciliates include the genus ____
a. Euglena b. Anopheles c. Trichomonas d. Paramecium e. Entamoeba
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.
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
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