Which sentence describes an example of natural selection?
a)an insect has a random gene mutation that gives it an unusual coloring.
b)pedigree dogs are selected by humans for breeding.
c)a child inherits a rare genetic disorder from his parents.
d)cheetahs with longer legs are more likely to capture prey.

Organisms within a population must compete for resources to survive

4.06 hc)a five-year review of threats to the southern resident orca population of the united states concluded that the top threats were prey availability, contaminants, and effects from recreational and whale watching vessels. further down the list are oil spills, disease, and effects from commercial vessels not targeting whales. how might this list be different if it were for transient whale populations, which have a larger average population size and live farther offshore in open waters? a)the transient population is more likely to be affected by contaminants. b)the transient population is less likely to be affected by whale watching vessels. c)the transient population is more likely to be affected by disease. d)the transient population is less likely to be affected by prey availability.

Where does oogenesis take place ? seminiferous tubules fallopian tubes ovaries uterus