If we start with 250mL of snow, how many mL of water will we have once it has completely changed state?

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 are the four basic classes of organic molecules how do they differ structurally and functionally

Nucleic acid certain protein cell membranes certain carbohydrates