An earthquake decimates a ground-squirrel population, killing 98 percent of the squirrels The surviving population happens to ha
ve broader stripes on average, than the initial population. lE broadness of stripes is genetically determined, what effect has the ground-squirel population experienced during the earthquake?
A) directional selection
B) disruptive selection
C) a genetie bottleneck
D) gene flow
E) a founder event
Before the earthquake the gene pool of the parent population was bigger and carried different alleles for a lot of genes.
After the killing of 98% of the population, the surviving one has an incomplete representation of the original gene pool. We can think of this as a gene bottleneck; the new allele frequencies will be different that the parental population. IE: broadness of stripes has a higher frequency after the earthquake.
Explanation: Most of the water that evaporates from the oceans falls back into the oceans as precipitation. Only about 10 percent of the water evaporated from the oceans is transported over land and falls as precipitation.
they are called Mechanical waves and there are two kinds Transverse waves and compressional waves. Where matter in the medium moves back and forth at right angles to the direction the wave travels. I hope dis helps :3
Having on valence electron indicates that these elements are on the same column/group of the periodic table. Both these elements will bond with a -1 charge.
