What does the law of conservation of energy state?
A
Energy can be created from nothing.
B. Energy cannot be destroyed.
C. Energy cannot change forms.
D. The total amount of energy in a system changes continuously.

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.

Explain why process 2 is so important to sexual reproduction identify processes 1 and 3 state one difference between the cells produced by process 1 and cells produced by process 3

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots