The relationship between grana, thylakoids, and chloroplasts.

Thylakoids are often stacked on top of each other - they look like a stack of flapjacks. Grana, or singular 'granum,' are stacks of thylakoids within chloroplasts. The thylakoids contain numerous integral and peripheral membrane proteins as well as chemicals important to photosynthesis.

Explanation:

the answer is c) an oak tree

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

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