Symbiosis Quiz

What is symbiosis?

• The long term living together of unlike organisms

• The relationship between parasites and their hosts

• The process of evolution in living organisms

• The cooperation between organisms of the same species

What is mutualistic symbiosis?

• When both partners benefit from the relationship

• When one organism benefits while the other is harmed

• When two organisms compete for survival

• When one organism benefits while the other is not helped or harmed

What is parasitic symbiosis?

• When one organism benefits while the other is harmed

• When two organisms compete for survival

• When both partners benefit from the relationship

• When one organism benefits while the other is not helped or harmed

What is commensalistic symbiosis?

• When two organisms compete for survival

• When one organism benefits while the other is harmed

• When both partners benefit from the relationship

• When one organism benefits while the other is not helped or harmed

How do squirrels contribute to the evolutionary fitness of oak trees?

• By consuming the flesh of oak tree's unborn children

• By eating the bark and leaf buds of oak trees

• By spreading the seeds of oak trees through their droppings

• By stashing fresh acorns in hiding places for future growth

What is an example of a parasite?

• Bacteria and humans

• Ticks and opossums

• Clownfish and sea anemones

• Squirrels and oak trees

How do ticks sometimes act more like commensalists than parasites?

• By causing a significant decline in their host's fitness

• By drinking a large amount of blood from their hosts

• By taking very little blood from their hosts

• By transmitting diseases to their hosts

What is the benefit of opossums eating ticks?

• Ticks help opossums develop immunity to diseases

• Ticks help opossums control their population size

• Ticks help opossums spread their offspring

• Ticks provide a nutritious food source for opossums

What did the study of cholera bacteria reveal?

• Cholera bacteria can evolve to become mutualistic in countries with bad water filtration

• Cholera bacteria can evolve to become commensalistic in countries with good water filtration

• Cholera bacteria can evolve to become more deadly in countries with bad water filtration

• Cholera bacteria can only survive in countries with good water filtration

What is the importance of understanding symbiosis?

• To control the spread of diseases

• To improve the evolutionary fitness of organisms

• To understand the process of natural selection

• To study the behavior of different species