The two steps in photosynthesis shown in the model are called the light-dependent reactions (chloroplast becomes excited) and the light-independent reactions (chloroplast returns to an unexcited state). 1. Do your observations confirm that the first step requires light and the second does not?​

the answer is c) abandoned properties that are contaminated with hazardous materials.

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects

the electromagnetic energy from the sun arrives in the form of visible and invisible light.

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.