Which of the following descriptions about the organization of an ecosystem is correct? a) communities make up species, which make up populations. b) populations make up species, which make up communities. c) species make up communities, which make up populations. d) species make up

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?

Which anatomical plane is the only one that could not show both the sternal region and vertebral region