Ecology Review

What is Biodiversity?

• The variety of life in a particular habitat or ecosystem.

• The total number of species in the world.

• The study of living organisms and their interactions.

• The process of evolution in different species.

What is a Decomposer?

• An organism that helps to recycle nutrients within an ecosystem by eating dead or decaying organisms.

• A type of plant that produces its own food through photosynthesis.

• An animal that primarily feeds on living organisms.

• A microorganism that causes diseases in other organisms.

Define Population in ecology.

• A group of individuals of different species that live in the same area.

• A group of individuals of the same species that live in the same area.

• A collection of organisms that interact with each other in a specific environment.

• A random assortment of organisms found in a particular habitat.

What is a Producer?

• An organism that can make its own food, usually plants.

• An organism that consumes other organisms for energy.

• A type of consumer that feeds on decomposed matter.

• A living being that cannot produce its own food.

What is an Invasive Species?

• A species that is native to a specific habitat.

• A non-native species that spreads widely in a new habitat and causes harm to the environment.

• A species that is endangered and protected by law.

• A species that has no natural predators in its habitat.

What is Commensalism?

• A type of symbiotic relationship where one species benefits and the other is neither helped nor harmed.

• A relationship where both species benefit from each other.

• A relationship where one species is harmed and the other is unaffected.

• A type of relationship where both species are harmed.

Why might an organism have more than one arrow coming FROM them in a food web?

• More than one organism may eat them.

• They are at the top of the food chain.

• They produce energy through photosynthesis.

• They are decomposers that break down organic matter.

What is an Ecosystem?

• An area that includes communities of different species and their environment.

• A single species living in isolation.

• A collection of non-living things.

• A habitat without any living organisms.

Define Autotroph.

• An organism that produces its own food, typically through photosynthesis.

• An organism that consumes other organisms for energy.

• An organism that decomposes organic material.

• An organism that relies on external sources for food.

What is Symbiosis?

• A close and long-term interaction between two different species.

• A type of competition between two species for resources.

• A process of evolution where species become extinct.

• A method of communication between different species.