The correct answer is B. Algae and fungi are biotic; temperature and rainfall are abiotic.
<h3>FURTHER EXPLANATION</h3>
An ecosystem consists of all living and non-living factors in an environment that interact and that are interdependent with each other.
All living things or factors in an ecosystem are called biotic factors. Examples include organisms like plants, animals, humans, etc.
All non-living things or factors in an ecosystem are called abiotic factors.
A. Rain and grass are biotic; wind and humidity are abiotic.
<em>FALSE because rain, wind and humidity are abiotic and grass is biotic.</em>
B. Algae and fungi are biotic, temperature and rainfall are abiotic.
<em>TRUE because algae and fungi are microorganisms and living things, hence, biotic factors. Temperature and rainfall are non-living things so they are called abiotic factors.</em>
C. Oxygen, and sunlight are biotic; maple trees and spiders are abiotic.
<em>FALSE because oxygen and sunlight are non-living factors and should be classified as abiotic while maple tree and spiders are living things, therefore, are considered biotic factors. </em>
D. Fish and whales are biotic; plankton and bacteria are abiotic.
<em>FALSE because fish, whales, plankton, and bacteria are living organisms, therefore, they are all biotic factors.</em>
<h3 /><h3>LEARN MORE</h3>
keywords: biotic factors, abiotic factors, ecosystem