The fertilized egg (zygote) of a human contains how many chromosomes?

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 do disease caused by bacteria and disease caused by viruses react to antibiotics

Can someone me with this question/ give me the answer? you!