Quiz about Interactions in an Ecosystem

Question 1

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

Accepted Answer

commensalism

Answer

parasitism

Answer

mutualism

Question 2

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.

Accepted Answer

mutualism

Answer

parasitism

Answer

commensalism

Question 3

Oxpeckers feed on the ticks found on a rhinoceros. The oxpeckers get a meal and the rhinoceros is helped by the removal of the ticks.

Accepted Answer

mutualism

Answer

parasitism

Answer

commensalism

Question 4

Two different populations of birds live in the same area and eat the same types of food. Which most likely describes the relationship between these two populations of birds?

Accepted Answer

competition

Answer

mutualism

Answer

parasitism

Answer

predator-prey

Question 5

A fig tree that provides shelter and fruit that are essential to the survival of numerous other species is an example of

Accepted Answer

A keystone species

Answer

An exotic species

Answer

An indicator species

Answer

An endemic species

Question 6

Two different populations of birds live in the same area and eat the same types of food. Which most likely describes the relationship between these two populations of birds?

Accepted Answer

competition

Answer

mutualism

Answer

parasitism

Answer

predator-prey

Question 7

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

Accepted Answer

parasitism

Answer

commensalism

Answer

mutualism

Question 8

Hermit crabs live in shells made and then abandoned by snails. This relationship neither helps nor harms the snails.

Accepted Answer

commensalism

Answer

parasitism

Answer

mutualism

Question 9

A close-term relationship between different species in a population is called

Accepted Answer

Symbiosis

Answer

Photosynthesis

Answer

Homogeneous

Answer

Symbolism

Question 10

This occurs when organisms in a community fight for the same limited resource.

Accepted Answer

Competition

Answer

Commensalism

Answer

Mutualism

Answer

Symbiosis

Question 11

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.

Accepted Answer

commensalism

Answer

parasitism

Answer

mutualism

Question 12

An animal that eats another animal is called...

Accepted Answer

Predator

Answer

Prey

Answer

Organism

Answer

Mammal

Question 13

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

Accepted Answer

limiting factor

Answer

limiting measure

Answer

factorization

Answer

materialization of precipitation

Question 14

This occurs when niches overlap between species and they have to compete for resources.

Accepted Answer

competition

Answer

interspecific

Answer

parasite

Answer

intraspecies

Question 15

Sharks consume (eat) smaller fish they catch in the ocean. Frogs catch and eat flying insects in ponds. What type of relationship is this?

Accepted Answer

predation

Answer

mutulism

Answer

parasitism

Answer

interspecific

Question 16

A ________ is the one who benefits, while the ______ is the organism that gets harmed.

Accepted Answer

parasite, host

Answer

virus, bacteria

Answer

Preadator, prey

Answer

prey, host

Question 17

Which of the following is an example of a symbiotic relationship in an ecosystem?

Accepted Answer

C) Mutualism

Answer

A) Predator-prey

Answer

B) Competition

Answer

D) Parasitism

Question 18

In a forest ecosystem, which of the following organisms is most likely to be a primary consumer?

Accepted Answer

A) Deer

Answer

B) Wolf

Answer

C) Oak tree

Answer

D) Mushroom

Question 19

What role do decomposers play in an ecosystem?

Accepted Answer

B) They break down dead organisms and recycle nutrients

Answer

A) They produce energy through photosynthesis

Answer

C) They compete with primary consumers for food

Answer

D) They are top predators in the food chain

Question 20

Which of the following best describes the concept of a food web?

Accepted Answer

B) A complex network of interconnected food chains

Answer

A) A linear sequence of organisms through which nutrients and energy pass

Answer

C) A single path of energy flow in an ecosystem

Answer

D) A diagram showing the number of organisms at each trophic level

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