Ecology Quiz

Which of the following is NOT a biotic factor?

• Feeding Relationships

• Symbioses

• Competition

• Climate and Weather Conditions

Which of the following is an abiotic factor?

• Disease

• Natural Disasters

• Feeding Relationships

• Symbioses

What is considered a biotic factor in an ecosystem?

• Availability of Resources

• Climate and Weather Conditions

• Disease

• Natural Disasters

What abiotic factor could directly affect the availability of resources in an ecosystem?

• Competition

• Disease

• Natural Disasters

• Symbioses

What role do decomposers play in the ecosystem according to the diagram?

• They produce their own food.

• They consume other organisms.

• They break down dead material.

• They compete with consumers.

How can predators affect the population size of prey species in an ecosystem?

• By increasing the carrying capacity of the ecosystem

• By regulating the population size of prey species

• By decreasing interspecific competition for resources

• By promoting species diversity

What can interspecific competition for resources such as food, water, and shelter influence?

• The carrying capacity of the ecosystem

• The population size of predators

• Species diversity and population sizes

• The abundance of non-living resources

In a coral reef ecosystem, what can affect the abundance of different species of corals?

• Predation by herbivores

• Competition for space and light

• The presence of predators like sharks

• The population size of fish species

What are abiotic factors?

• Living components of the ecosystem

• Non-living components of the ecosystem

• Animals and plants in the ecosystem

• Human-made structures in the ecosystem

Abiotic factors include which of the following?

• Climate and weather conditions

• Natural disasters

• Availability of resources

• All of the above