T. Communities

If coevolution applies in the case of the monarch and the milkweed (monarch caterpillars eat milkweed and become toxic to predators by doing so):

• Monarch caterpillars should match the colors of the milkweed

• Monarch caterpillars should pollinate milkweed

• The Monarch's munching on the milkweed should cause the milkweed to put up defenses such as latex sap and hairy leaves

• The Monarch should eat all the leaves on the milkweed with no milkweed defenses to overcome

In a field that has been torn up and planted with grass, a colony of fire ants dominates the terrain. Insects, spiders, and nesting birds can no longer live near the fire ant colony. What describes this ecosystem (choose ALL that apply)?

• It has high species richness

• It has low species richness

• It has high relative abundance of ants

• It has high relative abundance of spiders

If a section of the trees on Mountain View's campus were cleared, what would be happening one year later if no further disturbance happened?

• Primary succession

• Secondary succession

• Climax community

• No life present

The Kestrel and the Screech Owl both feed on mice, but the Kestrel hunts during the day and the Owl at night. This is an example of:

• Competition

• Antagonism

• Resource partitioning

• Coevolution

Spanish "moss" lives on trees in humid areas of the South. It obtains no nutrients from the tree itself. The relationship between the tree and the Spanish "moss" (a bromeliad, not a moss) is:

• Mutualism

• Commensalism

• Parasitism

• Predation

Releasing exotic pets often causes havoc in the ecosystem because (Choose ALL that apply):

• Exotic species have no natural predators here

• Exotic species cannot survive here

• Exotic species take up niches that native species had little competition for

• Exotic species may carry diseases that are not naturally found here, but can infect native wildlife