Question

Based on the assertion and reason, choose the right option.
Assertion [A] : Different ecosystems have different species composition.
Reason [R] : The type of species that can thrive in an ecosystem is dependent upon its geography, topography and climate.

• A. Both A and R are true and R explains A
• B. Both A and R are true R does not explain A
• C. A is true and R is false
• D. Both A and R are false

Answer 1

The correct option is A

Both A and R are true and R explains A

Each ecosystem has different kinds of species. This is because the type of species that can thrive in an ecosystem is dependent upon its geography, topography and climate. For example, the desert ecosystems have species that are well adapted to live in the sand with limited access to water, such as camels and cacti. The species in tundras have adaptations to keep the body warm, such as polar bear that has fur and fat layers under its skin.