Which statement best describes ecosystems on Earth?
O
A. Few ecosystems have less than 10 trophic levels.
O
B. Forest ecosystems tend to have the most primary consumers.
O
C. Most ecosystems have more than four trophic levels.
D. Deforestation of rain forests can hom other ecosystems,
SUBMIT

Option B. Forest ecosystems tend to have the most primary consumers, is the correct answer.

Explanation:

Primary consumers are the organisms which feed on plants. In forest ecosystem, there are high number of primary consumers such as deer, rabbit and wild Buffalo etc which feed on producers (plants) because forest have maximum vegetation cover and that's why more food is available for primary consumers.