Why are magma and lava not considered to be rocks ?
a both are formed by weathering and erosion
b neither is solid
c gravitational or potential gravitational energy
d all of these power the rock cycle

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.

Amoeba sisters video recap pedigrees

Sickle cell amelia is a condition condition where the red blood cells are deformed which is affected by sickle cell amenia