Charles Darwin spent over 20 years developing his theory of natural selection.

What are the names of the two kinds of reproduction?

Which best describes how fossil fuels form?

On a cold winters day if u let a cup of water sitting outside, it could freeze heat is transferred out of the water describe the behavior of the water molecules and how the temperature is effected

The type of plankton that resemble plants are called?

What are the predominant im forces between molecules of water?

Two species of birds feed on berries. the birds are active at different times of the day, and do not come into contact with one another. nonetheless, the presence of one species limits the survival and reproduction of the other.

Satellite imaging can be used to: predict weather analyze geological structures locate oil deposits all of the above

Which bird (s) was/were most successful after 1,000,000 years? Why were they more successful?

A student makes the analogy that the cardiovascular system is like a highway. Why is this a good analogy?

The distribution of related animals and plants across the world