What type of natural selection selects for both the extremes of a phenotype in a population?
a
Directional selection
b Stabilizing selection
C Disruptive selection

Disruptive Selection

Explanation:

describes changes in population genetics in which extreme values for a trait are favored over intermediate values.

chert is a sedimentary rock composed of microcrystalline or cryptocrystalline silica. with this little bit of information, you can come to the conclusion that your answer is c.  

explanation:

answer >   yes we do, women; have three holes, urethral opening(pee hole, vagina, and the women pee/girls pee out of the urethra like the men do; only they have a single opening to pee/ejaculate.   (sorry if i'm too forward with this, but this is for a biology class, isn't it? )

hope that !         : )