What gas exchange takes place in the alveoli?

28. how many linkage groups will be formed by homogametic organism with 28 chromosomes?

Which of the following molecules could pass through the plasma membrane by simple diffusion? a. na+ ions b. glucose c. amino acids d. carbon dioxide

Science describe how heat moves in a convection current. how is this process responsible for moving earth’s tectonic plates? discuss two ways that humans are impacting our earth. be sure to pick one way we are impacting our land, and one way we are impacting our water. then, create an action plan that includes a way that you and your family can protect the earth from these impacts