Someone accidentally left B. His or her back back on that park bench. You are referring to a person.
D. They are all bad people.
B.
<span>Unemployment is high in many fields, but there are jobs available in telecommunications.
A comma is used when it is placed after the end of one independent clause and the beginning of another which follows one such clause. The two independent clauses must be joined with words known as co-ordinating conjunctions. Examples of such words are, but, and,or so etc.
In this sentence but is used, </span>preceded by a comma so it is the right one.
Answer:
I think
complex web of interactions among the species of the rain forest often involves insects, plants and primitive organisms such as fungi. Ants are especially likely to form various symbiotic relationships. For example, the leaf cutter ant has symbiotic relationships with fungi that they grow as food.
The coral reef ecosystem is a diverse collection of species that interact with each other and the physical environment. The sun is the initial source of energy for this ecosystem. Through photosynthesis, phytoplankton, algae, and other plants convert light energy into chemical energy
Bacteria create mutualistic relationships with the mangrove trees. The bacteria provide services such as N-fixation while the mangroves trees provide root exudates, stimulating microbial growth activity. Fungi show similar relationships with the mangrove tree
The correct answer to this is :
D.
Hope this helps you
