In the Tuskegee syphilis experiments, doctors syphilis suffers. A. gave treatment to B. withheld treatment from C. ignored D. infected Please select the best answer from the choices provided A B C D

The diagram shows a fossil of an ancient whale skull and a skull of a present-day whale. the ancient whale is extinct and is believed to be an ancestor of the present-day whale. what do these skulls most likely show that supports darwin’s theory of evolution? all populations can adapt and survive. only some organisms have a common ancestor. populations change slowly over time. populations rapidly become extinct.

Kudzu vines grow by climbing and wrapping around trees. trees covered by kudzu can die because they are starved of sunlight. what type of relationship exists between the trees and the kudzu growing on them?

What is it called when lava when it erupts from the surface through volcanoes.