Answer:
active transport
Explanation:
I like to remember it by active transport has the name active, which means it requires activity
This is only explanation. What are the questions for it?
Well, cray fish are omnivorous which means they eat animals too. Secondary consumers eat animals.
Cray fish are secondary consumers.
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
If the producer were to disappear then all the other organisms will either go extinct, survival of the fittest, or have to adapt to the change.