Ecology CRASH COURSE Part 3

Multiple Choice

What does it mean if an invasive species has no natural predators in its new habitat?

• Its population can grow unchecked.

• It will die out quickly.

• It will become a native species.

• It will help other species survive.

Multiple Choice

Which of the following is an accidental way invasive species can be introduced?

• Tourism

• Conservation efforts

• Breeding programs

• Natural selection

Multiple Choice

If a species is brought to a new habitat by accident, what is it called?

• Invasive species

• Endangered species

• Native species

• Extinct species

Multiple Choice

Why does no species overpopulate or overpower another in a coevolved community?

• Because they have evolved in a delicate way

• Because they are all the same species

• Because they live in different habitats

• Because they do not interact

Multiple Choice

Why is it important for communities to maintain the balance produced by coevolution?

• To prevent any species from dominating

• To ensure all species are the same

• To stop evolution

• To increase competition

Multiple Choice

Which of the following best describes the benefit in a parasitic relationship?

• Only the parasite benefits.

• Only the host benefits.

• Both benefit equally.

• Neither benefits.

Multiple Choice

Which of the following best explains why mutualism is important in nature?

• It helps both species survive and thrive

• It causes competition

• It leads to extinction

• It harms both species

Multiple Choice

Which resource is essential for both plants and animals and is often a source of competition?

• Sunlight

• Plastic

• Metal

• Electronics

Multiple Choice

If two organisms have the same niche, what is likely to happen?

• They will compete for resources

• They will ignore each other

• They will always cooperate

• They will live in different ecosystems

Multiple Choice

What is the main difference between a population and a community?

• A population is one species, a community is many populations.

• A population is many species, a community is one species.

• A population is non-living, a community is living.

• A population is only plants, a community is only animals.

Multiple Choice

Barnacles create home sites by attaching themselves to whales. This relationship neither harms nor benefits the whales. 

• parasitism
• commensalism
• mutualism

Multiple Choice

Yucca flowers are pollinated by yucca moths. The moths lay their eggs in the flowers where the larvae hatch and eat some of the developing seeds. Both species benefit. 

• parasitism
• commensalism
• mutualism

Multiple Choice

Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed. 

• parasitism
• commensalism
• mutualism

Multiple Choice

 The stork uses it saw-like bill to cut up the dead animals it eats. As a result, the dead animal carcass is accessible to some bees for food and egg laying. The relationship neither harms nor benefits the stork.

• parasitism
• commensalism
• mutualism

Multiple Choice

Which of the following shows the symbiotic relationship between the Rodent and the Bird?

• Mutualism

• Commensalism

• Competition

Multiple Choice

Two male Giraffes are fighting over the last green leaf of a tree that is dying.  

• Competition
• Mutualsim
• Predation
• Commensalism

Multiple Choice

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

• competition
• symbiosis
• predation

Multiple Choice

In a parasitic relationship, one organism is ___________ and one organism is benefiting. 

• helped
• harmed
• not effected
• happy

Multiple Choice

In a mutual relationship, both organisms are ________________. 

• hurt
• not effected
• harmed
• benefiting 

Multiple Choice

Commensalism is where one organism is benefiting and the other organism is _____________________. 

• not effected
• helped
• harmed
• hurt

Multiple Choice

1.  A bee and a flower work together to benefit each other. This is an example of _________________. The bee helps the flower by pollinating it and the flower helps the bee by providing it with nectar. 

• commensal relationship 
• parasitic relationship 
• mutual relationship 

Multiple Choice

A feeding relationship where one organism hunts and one is hunted, such as a Lynx hunting a snowshoe hare, is known as:

• Commensalism

• Decomposistion

• Mutualism

• Predator-Prey

Multiple Choice

The animal in an ecological relationship that results in another animal being hunted, killed, and eaten…

• autotroph

• habitat

• predator

• herbivore

• producer