1. Adaptive evolution is a process that occurs a. within one individual's lifetime. b. when an individual is reproductively active. c. over multiple generations of individuals. d. during foraging activities. 2. Which of the following is not a mechanism of evolution? a. Genetic drift b. Natural selections c. Gene flow d. All are mechanisms of evolution 3. In some worm species, the actions of individual worms make the soil more hospitable to other members of the species. Such a phenomenon would tend to encourage which dispersion pattern? a. Regular b. Clumped c. Genet d. Random 4. Which pair of evolutionary processes can introduce new alleles into a population? a. Mutation and recombination b. Genetic drift and recombination c. Disruptive selection and gene flow d. Gene flow and mutation 5. All plants and some algae have a complicated life cycle with both a multicellular diploid stage and a multicellular haploid stage. This type of life cycle is called a. sporophyte; gametophyte; metamorphosis b. sporophyte; gametophyte; alternation of generations c. gametophyte; sporophyte; alternation of generations d.gametophyte; sporophyte; metamorphosis 6. When are young lion cubs particularly at risk? a. When they are expelled from the pride and join "bachelor prides" b. When they form coalitions with other females c. When the adult male in an established pride is dethroned d. When females in the pride become sexually receptive
