Answer:
Ponds and lakes can be natural or manmade. Stream pools are more similar to ponds than lakes are. Most aquatic plant life can be found in the littoral zone. An increase in the number of phytoplankton in an aquatic ecosystem is always beneficial.
Explanation:
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b
The hypothesis is not supported because the most common blood type in the United States is O+.
What is it?
.E. All of the preceding statements are TRUE.
It's not mechanism
n. o.