How does waste move from kidneys to the bladder in the human excretory system? a) it travels through tubes called ureters. b) it is picked up by blood and deposited in the bladder as blood circulates through. c) it enters the digestive system after it is filtered through the kidneys. d) it flows through the intestines.

Which of these transport mechanisms moves glucose from the blood into a cell? active transport diffusion facilitated diffusion osmosis

Which of the following factors would not contribute to allopatric speciation? a) a population becomes geographically isolated from the parent population.b) the separated population is small, and genetic drift occurs.c) the isolated population is exposed to different selection pressures than the ancestral population.d) different mutations begin to distinguish the gene pools of the separated populations.e) gene flow between the two populations is extensive.

What tool do geneticists use to predict the outcome of genetic crosses? a.karyotype b.punnett square c.centrifuge