How is wavelength measured in electromagnetic radiation?
a) the distance from the bottom of a trough to the top of a crest
b) the distance from the middle of a wave to the top of a crest
c) the distance from the crest of one wave to the crest of the next wave
d) the distance from the crest of one wave to the trough of the next wave

answer: after carbon dioxide enters the leaf through stomata it moves into the mesophyll cells where photosynthesis occurs and glucose is constructed. respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy.

explanation:

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.

more words for this could be abiotic and biotic

abiotic: living organisms within an ecosystem

biotic: non-living organisms within an ecosystem

c. is the correct answer