What is the vocabulary term for "the surface layer of aquatic environments that is penetrated by
sunlight"?

Scientific thinking: what clues about biology might road kill provide?

What adaptation is apparent in the bodies of the three tortoise species shown in figure 16-2

Jasmine, at 33 months of age, is able to engage in some self-care behaviors but still has trouble with tasks such as putting on socks. a few months later, she accomplishes this same task relatively easily. the change in abilities is most likely due to