Which best describes why all plants need some sort of leaf or other green, leaf-like surface? a) to perform photosynthesis b) to stand upright c) to be eukaryotic d) to transport food

What characteristic does giardia have that makes it a protist, a characteristic that all other protists have? a. it is a unicellular eukaryote. b. it is a eukaryote that is not an animal, a plant, or a fungus. c. it is parasitic and has flagella. d. it spends part of its time in a body of water.