Which best explains why a parasite needs a host? 1. Parasites use their host as a energy source.
2. Parasites use the immune system of their host.
3. Parasites use their host to increase their oxygen supply.

Type the correct answer in the box. use numerals instead of words. fiona has a lovely flower bed in her yard. she wants to add a fence along one side of the flower bed. the fence material is sold in meters. fiona knows that her flower bed is 200 centimeters in length. how much fencing material does fiona need in meters? fiona needs meters of fencing material for her flower bed.

All organisms contribute some water to the water cycle by conducting

Awolf pack hunts,kills, and feeds on a moose. in this interactions, the moose is a?