Which of the following is NOT an example of a density-dependent limiting factor that will influence carrying capacity?
a) disease
b) predation
c) flooding
d) territory availability
e) food supply
Answer: c) flooding
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In the Gulf of Mexico, red tides caused by the dinoflagellate Karenia brevis cause massive fish kills as well as respiratory problems in humans. As an environmental scientist, what would you suggest concerned citizens do to help prevent these red tides?
A. Purchase fuel-efficient vehicles B. Decrease the amount of artificial light in coastal areas C. Encourage sustainable fishing D. Reduce fertilizer use on lawns and gardens E. Participate in beach cleanup efforts
During a particularly slow afternoon in the lab, you and your colleagues decide to play another round of Whose Heart Is This? The heart you are given has a pair of atria, but only a single, undivided ventricle. What type of animal did this heart belong to before it was given to you?
a. fish b. reptile c. amphibian d. mammal
_____ is an example of reproductive cloning
a. Somatic cell nuclear transfer (SCNT) b. Multiple offspring from the same pregnancy c. Artificial embryo splitting d. [Somatic cell nuclear transfer (SCNT)] and [Artificial embryo splitting] e. All of these
All cells except bacteria and archaea
a. are eukaryotes. b. possess a nucleus. c. use organelles for compartmentalization. d. have a dynamic “skeleton” of proteins. e. are all of these.