Ecological Relationships
What is the term for a relationship in which one organism hunts, kills, and consumes another organism?
a) Mutualism
b) Predation
c) Commensalism
d) Parasitism
B) Predation
What is the relationship in which one organism benefits at the expense of another organism called?
a) Competition
b) Parasitism
c) Mutualism
d) Commensalism
B) Parasitism
What is the struggle between organisms for limited resources called?
a) Cooperation
b) Competition
c) Predation
d) Commensalism
B) Competition
What is the relationship in which one organism benefits while the other is neither helped nor harmed called?
a) Parasitism
b) Commensalism
c) Mutualism
d) Competition
B) Commensalism
What type of ecological relationship benefits both organisms involved?
a) Mutualism
b) Parasitism
c) Predation
d) Competition
A) Mutualism
Which of the following is an example of a predator-prey relationship?
a) Bees pollinating flowers
b) Lions grazing on grasslands
c) Deer feeding on grass
d) Owls hunting mice
D) Owls Hunting Mice
Which of the following is an example of parasite?
a) Tick
b) Tapeworm
c) Mosquito
d) All of the above
d) All of the above
Which of the following is an example of the same species in competition?
a) Lions and cheetahs competing for prey
b) Two different species of birds nesting in the same tree
c) Siblings competing for food
d) Plants competing for sunlight
c) Siblings competing for food
Which of the following is an example of commensalism in terrestrial ecosystems?
a) Birds nesting in trees
b) Barnacles attaching to whales
c) Remoras hitching a ride on sharks
d) Algae growing on a turtle's shell
D) Algae growing on a turtle's shell
Provide an example of mutualism in terrestrial ecosystems.
a) Barnacles attaching to whales
b) Bees pollinating flowers
c) Lions hunting zebras
d) Mosquitoes feeding on blood
B) Bees pollinating flowers
How does the population of prey influence the population of predators in an ecosystem?
a) The population of prey has no effect on the population of predators.
b) An increase in prey population leads to a decrease in predator population.
c) A decrease in prey population leads to a decrease in predator population.
d) Predator and prey populations are not related.
C) A decrease in prey population leads to a decrease in predator population
How does a parasite benefit from its relationship with the host?
a) By providing protection to the host
b) By helping the host find food
c) By gaining nutrients from the host
d) By sharing its genetic material with the host
C) By gaining nutrients from the host
Which of the following is an example of the different species in competition?
a) Vultures and hyenas fighting over a lions kill
b) Different plants trying to outgrow each other for sunlight.
c) Two different species of coral crowding a small rock.
d) All of the above
D) All of the above.
Provide an example of a commensalistic relationship in aquatic ecosystems.
a) Clownfish and sea anemones
b) Barnacles and whales
c) Remoras and sharks
d) Cleaner fish and larger fish
C) Remoras and sharks
Describe a mutualistic relationship in which one organism provides protection to the other.
a) Cleaner wrasse fish cleaning parasites off larger fish
b) Lichen formed by algae and fungi
c) Clownfish hiding in sea anemones
d) Ants protecting aphids from predators
A) Cleaner wrasse fish cleaning parasites off larger fish
The photosynthetic algae provide food for the fungus, which in turn provides a suitable living environment for the algae.
Mutualism
The Remora fish swim alongside the shark and take scraps of food that the shark drops during feeding. The shark does not eat the Remora and appears unaffected by its presence.
What is the relationship between these two?
Commensalism
What would member of the same species complete for?
A) food
B) Shelter
C) Mates
D) All of the above
D) All of the above.
Why is the relationship in commensalism considered one-sided?
a) Both organisms benefit equally.
b) Only one organism benefits, while the other is unaffected.
c) Both organisms are harmed.
d) Both organisms benefit, but one benefits more than the other.
B) Only one organisms benefit, while the other is unaffected.
Explain how nitrogen-fixing bacteria form a mutualistic relationship with certain plants.
a) By consuming excess nitrogen from the soil
b) By providing carbon dioxide to the plants
c) By converting atmospheric nitrogen into a form usable by plants
d) By competing with plants for nutrients
c) By converting atmospheric nitrogen into a form usable by plants
How do predators and prey contribute to ecosystem balance?
a) Predators control prey populations, preventing overpopulation.
b) Prey provide energy and nutrients for predators.
c) Both a) and b)
d) None of the above
c) Both A) and B)
A cuckoo bird leaves their eggs in the nests of other birds. The baby is raised by the other birds and may steal from that bird's own babies. Who is the parasite?
A) Birds that raise the babies
B) The cuckoo
C) Neither this is not parasitism
D) Both types of birds
B) The cuckoo
What would members of different species complete for?
A) food
B) Shelter
C) Mates
D) A and B only
E) All of the above
D) A and B only.
Which is an example of commensalism?
a) Cows stirring up bugs for birds
b) Birds eating parasites off antelope
c) Tapeworms stealing food in the intestine
d) All of the above
a) Cows stirring up bugs for birds
Which is an example of mutualism?
a) Cows stirring up bugs for birds
b) Birds eating parasites off antelope
c) Tapeworms stealing food in the intestine
d) All of the above
b) Birds eating parasites off antelope