HELP PLEASE, JUST SAY, "A" B" C" OR "D"

Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above

10. in which phase will crossing-over occur? a. mitosis b. metaphase ii c. prophase i d. meiosis ii