HELPS FAST PLS ASAP Several body parts actively work to break down food and make those compounds
available to the rest of the body. Which of the following best identifies parts of the
digestive system?
nose, mouth, lungs, pharynx
mouth, esophagus, stomach, small intestine, and liver
teeth, tongue, kidneys, lymph nodes, and heart
stomach, veins, arteries, colon

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.