Which of the following is TRUE regarding competition?
A) One species will always drive the other to extinction.
B) Competition is always focused on food.
C) The species larger in size typically outcompetes the smaller.
D) Water temperature can influence the outcome of competitive interactions.
D
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Allergic reactions are triggered by the production of ____ antibodies instead of ____ antibodies at the first exposure to the allergen
a. IgA; IgD b. IgA; IgE c. IgE; IgM d. IgE; IgG e. IgG; IgE
What is an assumption of group selection?
A. infanticide B. lack of immigration C. no natural selection D. high rates of mutation E. resource prediction
Goldfish are very hardy fish, which is why they have been in the pet trade for so long. They
are generalist feeders and can tolerate a wide range of oxygen concentrations as well as high levels of nitrogen (due to waste buildup in a small fish bowl). Based on this, goldfish ____________________.
a. have a large microhabitat b. have a broad ecological niche c. face almost no constraints or tradeoffs d. live in macrohabitats
If your mother and father both have cystic fibrosis, which is caused by a recessive allele, the odds of
your having cystic fibrosis are
a. 1/4. b. 1/2. c. 3/4. d. 1. e. 0.