The number of individuals that can be supported in a given habitat is the:
a. biotic potential.
b. density-independent effect.
c. carrying capacity (K).
Ans: c. carrying capacity (K).
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The ____ gene is the only gene successfully targeted for breast cancer prevention
a. estrogen receptor b. BRCA1 c. estrogen diethylstilbestrol d. BRCA2 e. progestin receptor
Sweating to keep cool in the summer is the result of ____
a. hydrogen bonds breaking to release energy b. hydrogen bonds forming, which requires energy c. evaporation of water giving off energy d. cohesion of water molecules giving off energy e. cohesion of water molecules requiring energy
Refer to Figure 33-1. The labeled structure that is responsible for secondary growth is:
a. 1.
b. 2.
c. 3.
d. 4.
e. 5.
Which of the following is a property of all living organisms?
a. Must “fit” their environment. b. Use the sun to fuel cellular respiration. c. Grow and develop based on inherited proteins. d. Regulate a constant internal body temperature.