Answer:
D. close association between two or more species in an ecosystem
Explanation:
A. Commensalism
B. Mutualism
C. Parasitism
D. Symbiosis
An agrarian society is a society whose economy and wealth is primarily based upon agriculture. Agricultural production relies primarily upon human and animal labor as opposed to mechanized tools. For example, a farmer in an agrarian society is likely to plow a field with a plough powered by horse, oxen or even just himself. An industrial society would utilize a tractor to till the field.
The <span>Bay of Fundy is such a great place for migrating shorebirds because of the large number of mud shrimp. The correct option among all the options that are given in the question is the first option. These mud shrimps are valuable part of diet of the migratory birds. I hope that the answer has helped you.</span>
<span>SAT has less validity in the universities with very competitive admission standards. This is because to enter the students must have very similar SAT scores, and this does not allow to predict who will get the best grades or the best academic performance, because they are other factors <span>those who could intervene in the possible academic success/failure.
I hope my answer can help you.
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