Answer: enable them to imprint on the facility
Explanation:
The addition of the chemicals to the river will help the fishes to recognize that this was their native habitat where they got birth and grew. This will act as a imprint formed by the facility which will help the fishes to recognize the water of the facility. This will help in increasing the number of fishes which return back to the facility.
White blood cells make up approximately 1% of the total blood volume in a healthy adult, making them substantially less numerous than the red blood cells at 40% to 45%.
The cell wall and chlorophyll are not found in animal cells.
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-Payshence
Producers (plants) are important to our ecosystem because they are the base of life. If it wasn't for producers, you wouldn't be eating your salad while your reading this answer. That chicken you had yesterday wouldn't be there if it wasn't for corn (a producer).
They became adapted to their new environment and became new species which then were not able to produce fertile offspring.