Review of Unit 6, Lessons 1 & 2

A tick and a dog have this type of relationship.

• mutualism
• commensalism
• neutralism
• parasitism

Cattle egrets are birds that forage in fields among cattle. The egrets get easy access to food and the cattle don't care if they are there or not.

• mutualism
• commensalism
• competition
• parasitism

a relationship that occurs when two or more organims of the same species need the same resource at the same time

• competition
• symbiosis
• predation

The close relationship between two different species in an ecosystem

• Biosphere

• Ecology

• Symbiosis

• Environment

When a mosquito bites you, you are the __________ and the mosquito is the  ____________.

• host, hostess
• parasite, host
• host, parasite
• prey, predator

A frog eats a fly. The frog and fly are demonstrating ________.

• mutualism

• competition

• predator/prey

• parasitism

Mistletoe takes water and nutrients from the oak tree. This is good for the mistletoe but bad for the tree.

• mutualism
• commensalism
• parasitism
• competition

A bison walks through the grass, insects fly up and are seen and eaten by egrets.  This neither harms nor helps the bison, but it is easier for the egrets to get food.

• mutualism
• parasitsm
• commensalism
• competition

in this food web, the lizard and the hawk have this relationship

• mutualism
• commensalism
• predation
• parasitsm

In this food web, the grasshopper and the mouse have this relationship:

• mutualism
• commensalism
• competition
• predation