Define the process of respiration.​

Consider the last statement in the prompt: "people take such environmental factors into account in their choices when deciding where to live." do all people have a choice as to where they live? what factor plays a key role in this decision and may therefore play a large role in determining quality of life?

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

Amoeba sisters video recap pedigrees