A bacterium that is shaped like a basketball would be called what?
A. coccus.
B. bacillus.
C. spirillus.
D. ovular.
E. squiggly.
Answer: A. coccus.
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The difference between diffusion and passive transport is that during diffusion molecules move ________ and in passive transport they move ________
a. through passive transporters / across the lipid bilayer b. down concentration gradients / up concentration gradients c. through active transporters / through passive transporters d. across the lipid bilayer / through passive transporters
Which of the following substances is NOT normally
filtered from the blood? a. water b. plasma proteins c. urea d. glucose e. sodium
Explain how disruptive selection could lead to the development of two species from one original founding population
What will be an ideal response?
Which of the studies below provide evidence linking genes and behavior? (Check all that apply)
A. Mice that are lacking either the ephrinB3 or the EphA4 gene cannot walk normally, but instead hop like a kangaroo. B. Twin studies comparing monozygotic and dizygotic twins have found a high heritability for height, although environmental influences like nutrition also play a role. C. Fruit flies that are mutant for the genes dunce or rutabaga have impaired learning. D. Two lines of fruit flies were created by repeatedly selecting for high or low aggressive behavior. After multiple generations, the high line was reliably more aggressive than the low line.