14. The organisms in your backyard include trees, shrubs, grass, ants, mushrooms, birds, spiders, beetles, flies, and bacteria. Together, all these organisms make up (A) an ecosystem. (B) a community. (C) a population. (D) an ecosociety. (E) an experimental group.

19. Mark found an organism in a pond, and he thinks it’s a freshwater sponge. His friend Ralph thinks it looks more like an aquatic fungus. How can they decide whether it is an animal or a fungus? (A) See if it can swim. (B) See if it is a eukaryote or a prokaryote. (C) Look for cell walls under a microscope. (D) Determine whether it is unicellular or multicellular. (E) Figure out whether it is autotrophic or heterotrophic.

14. The organisms in your backyard include trees, shrubs, grass, ants, mushrooms, birds, spiders, beetles, flies, and bacteria. Together, all these organisms make up (A) an ecosystem. (B) a community. (C) a population. (D) an ecosociety. (E) an experimental group.

其他試題

14. The organisms in your backyard include trees, shrubs, grass, ants, mushrooms, birds, spiders, beetles, flies, and bacteria. Together, all these organisms make up
(A) an ecosystem.
(B) a community.
(C) a population.
(D) an ecosociety.
(E) an experimental group.