13. what is a species?
a
a group of organisms that can breed together.
b
a group of organisms that live together in an area.
c
a group of organisms that can breed and produce infertile offspring together in nature.
d
a group of species that can breed and produce fertile offspring together in nature.
16. john raises goldfish as a pet dealer. he has over 10,000 fish in one large tank but, due to an electrical problem, 95 percent of the fish perish one night. the remaining 5 percent are left to breed and repopulate, passing their genes and traits on to future generations. what type of genetic drift would this be considered?
1points
a
bottleneck event
b
extinction
c
founder effect
d
natural selection
17. alicia wants to model allopatric speciation for her science project. she has a population of ants to use as her model. what should she do to the ant population?
1points
a
introduce another species of ants to her population
b
introduce a new food source to part of her population
c
place a wall in their habitat that divides the population
d
remove the water source from the population