Which macromolecule provides a person with most of the energy that is needed for daily activities? carbohydrates
lipids
nucleic acids
proteins

According to the cladogram, which organisms have roundworms as a common ancestor?

Match each description of an object’s motion with the position-time graph that represents it. not moving moving with constant speed speeding up slowing down

Biology students used raw eggs in an experiment on tonicity and osmosis. the students put their eggs into vinegar to remove the shells. the vinegar was used to remove the shell from the raw egg. what other effect(s) did the vinegar have on the egg?