Red blood cells have and generate energy a. mitochondria; anaerobicallyb. no mitochondria; anaerobicallyc. mitochondria; aerobicallyd. no mitochondria; aerobicallye. none of the above

the areas around the equator

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.