Viruses cause which of the following human diseases? the flu, AIDS and Bubonic Plague
the flu, AIDS and athlete's foot
© AIDS, cold sores and athlete's foot
the flu, AIDS, and cold sores

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.

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures

Moving down the ramp from 6 meters to