What you think the ph is in your stomach

How do ecosystem respond to nature disasters such as fires and floods

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.

When lactate builds up in a runners muscles it causes a burning sensation what causes this to occur