Biodiversity
as you move toward the?

Biodiversity increases as you move toward the equator. this is called latitudinal diversity gradient (LDG), it basically means that as you mover south or north from one of the poles, you will see an increase in biodiversity. hopefully, that will answer your question and a couple more that you will probably bump into.  

well for one plants are always the producer, so a is the answer. a wolf is more of the consumer(predator) and the deer is the prey so i know those two are out of the question. also mushrooms are fungi/fungus so a is the producer.

bacteria could be both, harmful and to us. harmful bacteria could make us sick and probably even by getting the chances of getting a disease, but good bacteria fight it off with your immune system. there is always bacteria everywhere we go. we need to make sure to wash our hands after using the restroom, before eating, after eating, after petting an animal too. so you see, bacteria is everywhere and is harmful or . i hope this . : ) : ) : )