Define the term selectively toxic. why is it an important feature of antimicrobial agents

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.

What happens when the cell copies its chromosomes

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from