Which terms best complete the chart about characteristics of human development between fertilization and birth? stages of human gestation first trimester second trimester third trimester - embryo develops - organs begin to develop - (1) - starts swallowing - fat begins to develop - (2) - all organs are developed - can hear and see - (3) (1) facial features form (2) heartbeat can be heard (3) nerve cells develop rapidly (1) heartbeat can be heard (2) nerve cells develop rapidly (3) facial features form (1) nerve cells develop rapidly (2) facial features form (3) heartbeat can be heard (1) facial features form (2) nerve cells develop rapidly (3) heartbeat can be heard

(! ) what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

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.

Plz ! a frog has a genetic mutation in skin cells that causes part of its skin to turn orange the frog will not pass this genetic mutation onto its offspring because, a. the offspring will inherit skin cells from the other parent. b. mutated skin cells cannot divide and produce daughter skin cells. c. skin cells do not contribute genetic material to sex cells. d. parents do not contribute genetic material to their offspring.