Select the correct answer from each drop-down menu. Which terms best describe the role played by each organism in an ecosystem? A species of prairie dog only eats grasses and seeds in its ecosystem. It burrows in the grassland, which aerates the soil and leads to a greater diversity of grasses. It is also a source of food for coyotes. The prairie dog is a and the coyote is a Reset Next © 2021 Edmentum. All rights reserved. Type here to search e < D​

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.