Organisms Relationships

The relationship in which an organism hunts and kills another organism for food is called:

• mutualism

• commensalism

• predation

• parasitism

When the bird called the oxpecker lands on the rhinocerus to eat the ticks that cover its body, it is an example of what type of relationship?

• mutualism

• commensalism

• predation

• parasitism

The following is an example of commensalism.

• Clown fish provide nutrients to anemone and anemone provides protection to the clown fish.

• The remora fish travels throughout the ocean with the sharks.

• The lion kills the giraffe for supper.

• The mosquito bites the human for blood.

The following is an example of parasitism.

• The clown fish gets protection from the anemone and the anemone gets nutrients from the clown fish.

• The remora fish travels throughout the ocean with the sharks.

• The lion kills the giraffe for supper.

• The mosquito bites the human for blood.

One way to decrease competition is to have a greater diversity of organisms.

• true

• false

Limiting factors are sometimes helpful because they can keep the population from getting too large.

• True
• False

Any thing or organism that regulates the size of a population of another organism is known as __________.

• a limiting measure
• a limiting factor
• factorization
• materialization of precipitation

This may cause a population to increase

• increase of food supply

• removal of predators

• removal of disease

• all of these

What are factors that affect carrying capacity?

• Biotic only

• Biotic and abiotic

• Depends on the ecosystem

• Abiotic only

The wolf population gets reintroduced to the ecosystem. There is enough deer to go around, so they eat comfortably. The wolf population begins to grow out of control with so much food. The different wolf families then begin to compete for the few caves that exist. Not everyone has good shelter so some have to sleep in the forest floors. What is the limiting factor to the wolves?

• Overcrowding

• Competition

• Weather

• Shelter