When a species invades a new habitat and evolves rapidly into several new species to better exploit new resources, what has occurred?
A) Polyploidy
B) Adaptive radiation
C) Hybridization
D) Genetic divergence
E) Extinction
B
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What determines the specific wavelength of light absorbed by a cone cell?
A. The type of retinal molecule present B. The location of the cone cell on the retina C. The type of opsin present in the membrane D. The type of retinal molecule and opsin present
Negative transcriptional regulation is conducted by activator proteins
Indicate whether the statement is true or false
Many people develop "mountain sickness" when they travel to high altitudes, developing headaches, difficulty
sleeping, and nausea from the lack of oxygen. Which process fails to occur in people who continue to have mountain sickness after being at high altitude for a few days?
a. evolution b. dynamic equilibrium c. acclimation d. acclimatization e. biorhythms
What is the term used to describe the ability to maintain a constant body temperature?
a. Homeothermic b. Heterothermic c. Endothermic d. Exothermic