Whales and snakes both have tiny leg bones that are not visible or used . These would be considered A. Vestigal
B. Fossilized
C. dichotomous
D. Homologous

Which class of organic compounds makes up the channels and pumps that move materials from one side of the cell membrane to the other? a.) carbohydrates b.) lipids c.) proteins d.) nucleic acids

What in scientific term why the salty popcorn causes this thirst

Astudent poured a solution of bromothymol blue indicator into three test tubes. then he placed an aquatic plant in two of the test tubes, as shown below. he placed a stopper on each test tube and placed them all in the dark for 24 hours. bromothymol blue turns from blue to yellow in the presence of co2