Explain what distinguishes primary and secondary consumers.

Primary consumers are the ones eating the plants, so mostly they are herbivores, compared to the secondary consumers, which eat both, that can be called omnivores

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

answer; heredity;