Erica is examining a series of related fossils. She notices the limb structure gets longer over time. Based on these fossils, what might Erica conclude about how a species changed?

Apopulation of black bears depends on salmon from a stream for food. if a drought causes the stream to run dry one year, how will this likely impact the black bear population?

The mammal pictured below is a silvery mole rat. which statement is an inference based on the picture? the animal is ugly. the animal has hairless feet with sharp claws. the animal has prominent upper and lower incisor teeth. the animal likely has poor vision since its eyes are so small.

Plants consume most of their carbon from a. the soil b. the water c. the roots d. the air