This region is known for hot and dry summers and long, cold winters.

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?

Will mark brainliest. (20 points) many have pigments structures known as eyespots that detect direction of light. a. b. archaebacteria c. protists d. none of the above

What is a photon? a. part of a ribosome b. a light particle c. a carbon dioxide molecule d. part of a chloroplast b. a light particle