Ecology Test Preparation

The video provides a review for an ecology test, covering key topics such as the energy pyramid, invasive species, symbiotic relationships, biotic and abiotic factors, and predator-prey dynamics. It explains the roles of producers, consumers, and decomposers in ecosystems, the impact of invasive species like Kudzu and lionfish, and different symbiotic relationships including parasitism, mutualism, and commensalism. The video also discusses the influence of biotic and abiotic factors on ecosystems and illustrates predator-prey interactions and food webs.

What type of organism is known for converting sunlight into energy?

• Carnivore

• Herbivore

• Producer

• Decomposer

Which consumer type primarily feeds on producers?

• Secondary consumers

• Decomposers

• Primary consumers

• Tertiary consumers

What is the main problem caused by invasive species like Kudzu?

• They have no natural predators

• They provide too much food

• They produce too much oxygen

• They are too small to see

Which type of symbiotic relationship benefits both species involved?

• Commensalism

• Predation

• Mutualism

• Parasitism

In a parasitic relationship, what happens to the host?

• It benefits

• It is unaffected

• It is harmed

• It becomes a predator

Which factor is considered abiotic in an ecosystem?

• Algae

• Birds

• Temperature

• Fish

What typically happens to the fox population when the bunny population decreases?

• Remains stable

• Decreases

• Becomes extinct

• Increases rapidly

Which organism is at the top of the food web?

• Snake

• Hawk

• Grass

• Rabbit

What role do decomposers play in an ecosystem?

• Prey on other animals

• Create water sources

• Break down dead material

• Produce energy from sunlight

What is the effect of a disease that targets a primary consumer in a food web?

• Increases plant populations

• All animals become sick

• Decreases predator populations

• No change in the ecosystem