Predation
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) Briannaism
b) Parasitism
c) Edjaism
d) Commensalism
B) Parasitism
True or False:
Competition only affects species that are physically similar to each other.
False. Competition can occur between species that are physically similar or very different, as long as they compete for the same types of resources.
True or False:
Commensalism is a type of symbiotic relationship where both organisms benefit.
False. Commensalism involves one organism benefiting while the other is neutral. Symbiotic relationships where both organisms benefit are known as mutualism.
Which of the following is an example of mutualism?
A. A lion hunting a zebra.
B. A clownfish living among the tentacles of a sea anemone.
C. A tree shading a smaller plant, reducing its sunlight.
B. A clownfish living among the tentacles of a sea anemone.
Which of the following is an example of a predator-prey relationship?
a) Bees pollinating flowers
b) Lions grazing on grasslands
c) Vera vs Billy
d) Owls hunting mice
D) Owls Hunting Mice
True or False
All parasites eventually kill their hosts.
False. Not all parasites kill their hosts. Some parasites live in or on their hosts for extended periods without causing death, while others may eventually kill their host.
True or False:
Competition always leads to the extinction of one of the competing species.
False. Competition does not always result in extinction. It can lead to various outcomes, such as competitive exclusion, resource allocation or evolutionary adaptations that allow species to coexist.
Which of the following is an example of commensalism in ecosystems?
a) Birds nesting in trees
b) Barnacles attaching to whales
c) Kaitlin high-fiving Fatima
d) Algae growing on a turtle's shell
D) Algae growing on a turtle's shell
Provide an example of mutualism in an ecosystem.
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 an increase in predator population.
d) Predator and prey populations are not related.
C) A decrease in prey population leads to an increase 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
How does competition for limited resources influence the distribution of species in an ecosystem?
a) It leads to random distribution of species.
b) It promotes uniform distribution of species.
c) It leads to clumped distribution of species.
d) It leads to niche differentiation and resource allocation
D) It leads to niche differentiation and resource allocation
True or False:
Commensalism involves a direct physical interaction between the two organisms.
False. Commensalism does not always involve direct physical interaction. The relationship can be indirect, such as when one organism benefits from the activities of another without physical contact.
True or False:
In mutualistic relationships, both organisms always benefit equally.
False. While both organisms benefit in mutualistic relationships, the extent of the benefits can vary. One organism might gain more from the interaction than the other.
Which adaptation helps predators catch their prey?
a) Bright colors
b) Slow movement
c) Sharp claws or teeth
d) Herbivorous diet
C) Sharp Claws or Teeth
What is the potential impact of parasites on host populations and ecosystems?
a) Increase in host fitness
b) Decrease in host susceptibility to diseases
c) Decrease in host population size
d) Increase in host biodiversity
c) Decrease in host population size
What role does niche differentiation play in reducing competition among species?
a) It increases competition by allowing more species to occupy the same niche.
b) It decreases competition by allowing species to occupy different ecological niches.
c) It has no effect on competition among species.
d) It leads to extinction of competing species.
B) It decreases competition by allowing species to occupy different ecological niches.
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.
True or False:
Mutualistic relationships can only occur between animals.
False. Mutualistic relationships can occur between various types of organisms, including plants, fungi, bacteria, and animals.
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)
True or False:
The term "parasite" only applies to organisms that cause disease in their hosts
False. While many parasites can cause disease, the term "parasite" broadly refers to any organism that lives on or in another organism (the host) and benefits at the host's expense, regardless of whether it causes disease.
True or False:
Competition can drive evolutionary changes in species, leading to adaptations that reduce competition.
True. Competitive interactions can lead to evolutionary changes, such as niche differentiation or adaptations that reduce direct competition between species.
What are some potential long-term effects of commensalistic interactions on populations and communities?
a) Increase in species diversity
b) Decrease in population size
c) Changes in community structure
d) All of the above
D) All of the above
What role do bees play in the mutualistic relationship with flowering plants?
Bees act as pollinators for flowering plants, transferring pollen from one flower to another, which helps the plants reproduce. In return, bees obtain nectar and pollen as food.