Can be estimated using relative dating or determined using absolute dating

The frog population in this ecosystem is rapidly decreasing due to pesticide use. Bird watchers in the area express their concerns about the impact the loss of frogs will have on birds.

The assembly of a cyclin-dependent kinase complex (CDKCs) begins with association of a cyclin and a cyclin-dependent kinase CDK that is than phosphorylated by a CDK-activating kinase and a CDK-inhibitory kinase and finally becomes active by

Adding lemon juice to milk curdles it and changes the taste. Which is the best explanation for this change?

Find a animal that has all the characteristics of life (8)

How offspring are produced in sexual reproduction

Bones, joints, ligaments, and cartilage are parts of the a) refrigerator b) muscles c) skeleton

Chloroplasts cannot move on their own. How do they move around the cell?

What causes leaves to dry out

And increase in food and a decrease in predators would most likely

Which would provide the body with the most energy? a. Carrying oxygen from the lungs to the cells b. Breaking the bonds in a disaccharide c. Breaking a single carbon bond d. Creating bonds to make a simple sugar