Which ecosystem contains 32% of the world's producers? a. terrestrial ecosystem b. freshwater ecosystem c. aquatic ecosystem d. marine ecosystem

Which image shows labeled organelles that are present only in plant cells?

Which of the following is not associated with invasive species?

Which of the following is true of metabolism in its entirety in all organisms? a) metabolism depends on a constant supply of energy from food. b) metabolism uses all of an organism's resources. c) metabolism consists of all the energy transformation reactions in an organism. d) metabolism manages the increase of entropy in an organism.