Which of the following statements is true about plants? a. plant cells do not have membrane-bound nuclei. b. plants have a single generation life cycle. c. plants are members of the domain prokarya. d. plant cells have cell walls made of cellulose.

Which is it a characteristic of the animal kingdom? a. they include both vertebrates and invertebrates b. their skin is covered with hair or fur c. they are heterotrophs d. they are eukaryotic

Which of the following is an oxidation-reduction reaction? (pictured below)

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.