A scientist found a new species in a rain forest. The species was small and green in color. She examined one of its many cells and found that the cell had a nucleus but no cell wall.

To which kingdom does this species most likely belong?

A. plants, because it is green and small
B. bacteria, because it is small and has a nucleus
C. fungi, because it is green and has no cell wall
D. animals, because it is multicellular with no cell wall

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.

Suppose you could go back in time to interview henri becquerel on the day he discovered radioactivity. from his perspective, write an account of the discovery.