Plants are interacting directly with another living element of their environment when they are -

A tapeworm inside a dog is

A symbiotic relationship that involves species having to fight for something they both need or want

relationship in which two species live closely together

A living relationship between two species in which one organism is harmed is called...

symbiotic relationship in which one organisms benefits and the other organism is not affected

symbiotic relationship in which both organisms benefit

Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales. What kind of relationship is this?

What type of symbiosis is this?

*Hermit crabs find shells left by snails that have died and move in.

* Snails die and leave behind their shells.

The crocodile and bird have a _______________ relationship. The crocodile benefits by having its teeth cleaned. The bird benefits by gaining food and protection. Both animals benefit from this relationship.

A clownfish uses a sea anenome as a safe place to live. While living there, the clownfish lures in food for the anenome. This is an example of what type of relationship?

Which of the following activities has a positive effect on the environment?

_____________ are LARGE areas that have similar climate, plant life, and animals.

What the non-living factor that is the most important to an ecosystem to work?