Answer:
A) The gene flow between hatchery-reared and wild populations is leading to a decline in fitness of wild populations.
Explanation:
<u>we have relative fitness at its greatest in trouts whose parents are wild x wild. crossing the wild with hatchery reared causes a decrease in the fitness of the troutgene flow is the exchange of genes between two different breeds. the wild is a greatly diverse breed and it is highly adaptive. while the hatchery reared is less adaptive.when these two breed less fit alleles will then be transferred to the wild</u>
therefore option a answers the question
The group in an experiment that all the conditions stay the same is the control group.
The answer is Porifera.
Porifera is phylum that includes sponges. <span>Their body is full of holes and it is easily for water to enter and exit these holes. </span>Sponges are commonly used for washing the dishes, but it is most likely that these are artificial sponges. Still, they are made modeled by real sponges. Rarely, the real sponges are used as bath or dish washing.
No organism is always the first step, except in a wide sense, plants. In the water, plankton is found in first but whereas on land, plants or seeds are eaten first.
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