Question

Exotic species are especially threatening to what kind of

ecosystem?

a. deserts

b. marine ecosystems

c. islands

d. tropical forests

Short answer

The correct option is (c).

Step-by-step solution

Step 1. Given information

The question enquires about exotic species are especially threatening to the type of ecosystem.

Step 2. Description

Invasive alien species or exotic species, are one of the most significant and alarming threats to biodiversity on most islands, causing significant ecological and economic harm as well as high social costs. Island biodiversity is significantly more abandoned and hence prone to harm.

Explanation of incorrect option

Deserts, marine ecosystem and tropical forests are not easily affected by the invasion of alien species.