Science Assessment

What is an abiotic factor?

• A living organism in an ecosystem

• A non-living component of an ecosystem, such as water, soil, and climate.

• A type of biotic factor that affects living organisms

• A chemical substance produced by living organisms

What role do decomposers play in an ecosystem?

• Decomposers break down dead organic matter, returning nutrients to the soil.

• Decomposers produce energy through photosynthesis.

• Decomposers compete with plants for sunlight and nutrients.

• Decomposers create new organic matter from inorganic substances.

What is a carnivore?

• A plant-eating animal

• An animal that primarily eats other animals.

• An animal that eats both plants and animals.

• An animal that primarily eats fruits.

What is symbiosis?

• Symbiosis is a close and long-term interaction between two different species.

• Symbiosis is a type of competition between two species for resources.

• Symbiosis refers to the process of one species consuming another.

• Symbiosis is a method of reproduction in plants.

What is competition in ecology?

• Competition occurs when two or more organisms vie for the same resources in an ecosystem.

• Competition is the process by which organisms adapt to their environment.

• Competition refers to the mutualistic relationships between different species.

• Competition is the phenomenon where organisms cooperate for survival.

What is a biotic factor?

• A non-living component of an ecosystem

• A living component of an ecosystem, including plants, animals, and microorganisms.

• A type of soil found in ecosystems

• A chemical substance that affects living organisms

Give an example of an abiotic factor in a forest.

• Sunlight

• Deer

• Mushrooms

• Fungi

What is the difference between a habitat and a niche?

• A habitat is the role of an organism in an ecosystem, while a niche is the environment where it lives.

• A habitat is the environment where an organism lives, while a niche is the role or function of that organism within the ecosystem.

• A habitat is a type of organism, while a niche is a group of organisms.

• A habitat is the food source of an organism, while a niche is its predator.

What is a community in ecology?

• A community is a group of different species that live together in a specific area.

• A community is a single species that dominates an ecosystem.

• A community is a collection of abiotic factors in an environment.

• A community is a random assortment of organisms in a habitat.

Define 'herbivore'.

• An animal that primarily eats plants.

• An animal that primarily eats meat.

• An animal that can eat both plants and meat.

• An animal that primarily eats fungi.