Ecology and Ecosystems Quiz

What distinguishes biotic factors from abiotic factors in an ecosystem?

• Biotic factors are nonliving, while abiotic factors are living.

• Biotic factors are the living parts of the environment, while abiotic factors are the nonliving parts.

• Biotic factors include sunlight and water, while abiotic factors include plants and animals.

• Biotic factors are only plants, while abiotic factors are everything else.

Which of the following is an example of an abiotic factor in an ecosystem?

• Animals

• Plants

• Soil

• Bacteria

What is the primary source of energy for most ecosystems?

• Water

• Soil nutrients

• Sunlight

• Wind

In an ecosystem, what role do deer primarily play?

• They are predators that hunt other animals.

• They are decomposers that break down organic material.

• They are herbivores that consume plants.

• They are scavengers that feed on dead organisms.

How do predators and prey interact in an ecosystem?

• Prey species have no impact on predator populations.

• Prey species evolve to become more like their predators.

• Predators are always larger than their prey.

• Predators help control the population of prey species.

Which of the following statements about deer in an ecosystem is true?

• Deer are at the top of the food chain.

• Deer consume plants and are preyed upon by predators.

• Deer do not interact with other species in their ecosystem.

• Deer only eat abiotic factors.

Which of the following statements accurately describes a species?

• A species is a collection of different organisms living in the same area.

• A species is a specific kind of organism that can reproduce to create more of its kind.

• A species is a group of organisms that can only survive in a specific biome.

• A species is defined by its role in the ecosystem.

Which of the following best defines an ecosystem?

• A community of organisms interacting with each other and their environment.

• A large area with a specific climate and types of species.

• A specific kind of organism that can reproduce.

• The role a species plays in its environment.

What is a niche in the context of ecology?

Which of the following best describes a biome?

• A type of ecosystem that only exists in water.

• A region defined solely by its vegetation.

• A large area with a certain climate and species.

• A small area with a unique climate and species.