Describe in your own words what photosynthesis is and why it is importan.

Growth of chest hair, deepening of the voice, and muscle growth are secondary sex characteristics. which most likely affects the development of these traits? testes ovaries prostate gland vulva

What type of competition exsist between two species. turtles and fish

In general, characteristics that an organism survive and reproduce become more common in a population over time. what mechanism of evolution cause this change?