Which of the following provide chemical evidence of ice ages? A. variations in pH levels in fossils B. concentrations of compounds in rock C. variations in ratios of isotopes in fossils D. concentrations of compounds in old trees

When is triglyceride considered a fat or an oil?

What happens to a fish when its swim bladder deflates?

Which question can best be answered by the processes of science

Identify the position of the fetus whose buttocks are in the fundus, whose fetal back is on the maternal right side between the midline and lateral surface of the abdomen, and whose attitude is general flexion.

The best fit line highschool biology

Why is it necessary to do a spinal tap when you suspect a bacterial infection of the central nervous system? why can't you use a blood test?

Name the major greenhouse gasses and how they get into the atmosphere

Which type of cell goes through the determination process?

What organic molecule is the basis of enzymes.?

Which transport mechanisms require the formation of a vesicles to transport material into or out of the cell? A: diffusion and osmosis B: exocytosis and calcium pumps C: exocytosis and endocytosis D: diffusion and facilitated diffusion