Select the appropriate word from the word bank below. Potential energy can be stored in the bonds of certain chemicals in the cell so the cell can harness that energy for work later. Some biologists were studying how energy can be stored in ADP molecules. They tried adding four different substances at position X in this molecule: adenine, hydroxide ion, phosphate group, and ribose.

Drag the molecule that should be added to this ADP molecule at the position labeled X to store
the most chemical potential energy for the cell.

The process by which natural forces move weathered rock and soil brim one place to another is called

Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data

Aristotle classified animals according to their a. habitat and mating behavior c. mating behavior and relatedness b. habitat and physical differences d. physical differences and mating behavior