The first one is a atom
The second one is a compound
The third one is molecules that are not compounds
The last one is a atom
The digestive system breaks down the food we eat while the circulatory system transports the tiny particles to each cell in the body.
I believe the answer is <span>small annual plants
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<span>Small annual plants will easily grow after a flood since it was small and rapidly growing. They also died fast, which makes them reproduce quickly. If the condition is harsh with less soil, l</span>ichen will be the most easier to survive. Pine and oak are strong trees that will be formed last.
