Ecosystems Test

Plants are an example of

• An Ecosystem

• An abiotic factor

• carrying capacity

• A biotic factor

A relationship where two organisms live closely and affect one another is called

• Symbiosis

• mutualism

• commensalism

• parasitism

A _______ is an animal that eats other animals.

Toxins become concentrated in animals at the top of the food chain because of ...​ ​ (a)  

• biomagnification
• abiotic factors
• carrying capacity
• decomposers

A​ (a)   occupies a broad niche.

• Generalist
• omnivores
• producers
• scavengers

Reorder the following from the bottom to the top of the energy pyramid

• tertiary consumer

• secondary consumer

• producers

• primary consumer

What percentage of energy is lost when moving from a lower to a higher level in the energy pyramid?

• 10%

• 25%

• 90%

• 50%

The largest population that an ecosystem can support over a long time is ...

• A limiting factor

• Carrying Capacity

• Space

• Niche

An organism with a parasite or virus living on or in it is called the _______.

The non-living parts of an ecosystem are _______.