What is the visual luminosity of the Sun?

Why are adults bigger than they were as children biology

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these

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.