Symbiosis

Symbiotic relationships are between ________ or more __________________ organisms that live in an ecosystem. The relationship _____________ at least one of the organisms.

In ecosystems, organisms must sometimes “fight” for limited resources such as food, water or mates. This can happen between organisms of different species, or between organisms of the same species. It is called ____________________.

A relationship where one organism eats another organism, usually of a different species (but not always).

A symbiotic relationship where both species benefit from each other.

A symbiotic relationship where one species benefits from another species, without helping or harming them.

What relationship is being shown between the ground squirrel and the birds?

A coyote kills and eats a rabbit. This is an example of:

Mistletoe extracts water and nutrients from a spruce tree, making it harder for the tree to survive. This is an example of: