Which of the following situations is MOST likely to result in the formation of a new species squirrels or birds? O A. A population of squirrels lives in an area where a large river forms and cuts through the middle of the forest.
O B. A population of squirrels lives in a stable forest habitat.
C. A population of birds live in a stable forest habitat.
OD. A population of birds lives in an area where a large river forms and cuts through the middle of the forest.

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.

the sun's light combined with the visible wavelenghts form what is called ultraviolet radiation, which are the long waves at the end of a visible light sprectrum.

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bioteacher101