Explain why plants are not dependent on humans in terms of photosynthesis

Why is it important to study each branch of earth science?

Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled

Which of th following best describes how genes produce traits in an organism?