When faced with a threat, gopher snakes and bull snakes, who have markings similar to rattlesnakes, will "rattle" their tails in brush to sound like a rattlesnake. In this case, the gopher and bull snakes are mimics, and the rattlesnake is the:
A) predator. B) model. C) commensal. D) prey.
Answer: B
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When does endospore formation commence?
A) when bacterial growth ceases due to limitation of an essential nutrient B) when the bacterium is undergoing binary fission C) when bacteria are dividing exponentially D) following bacterial death
What powers the ATP synthase enzyme in the
light-dependent reactions of photosynthesis?
a. energy from ATP b. energy from NADPH c. energy from the splitting of water d. energy from electron transfer chains e. energy from the flow of hydrogen ions
Four of the following are key characteristics for the survival of a species. Which one is the exception?
a. ability to acquire energy and nutrients b. response to environmental change c. reproduction d. inability to change e. ability to grow and adapt through changes in DNA
Individual covalent bonds are stronger than individual ionic bonds
Indicate whether the statement is true or false