What kind of ecosystem are exotic species especially threatening to?Question 13Select one:a.desertsb.marine ecosystemsc.islandsd.tropical forests

Breakdown of the Problem

1. Identify the Ecosystems: We need to evaluate the various ecosystems listed in the options to determine which is most threatened by exotic species.
2. Understand Exotic Species Impact: Research how exotic species typically impact ecosystems, focusing on the characteristics of each option.

Relevant Concepts

1. Ecosystem Vulnerability: Islands, tropical forests, marine ecosystems, and deserts each have unique characteristics that may affect their vulnerability to exotic species.
2. Invasive Species: Exotic species can out-compete native species for resources, disrupt food chains, and alter habitat structure, causing substantial ecological changes.

Analysis and Detail

1. Islands: Islands are often home to a high number of endemic species that have evolved in isolation. They typically have limited resources and may lack defenses against invasive species. Exotic species can easily disrupt these fragile ecosystems.
2. Tropical Forests: While tropical forests are biodiverse, their vastness and complexity may allow them to withstand some invasive pressures, though they are still sensitive to certain invasive plants and animals.
3. Marine Ecosystems: Similar to islands, marine ecosystems can be substantially affected by exotic species, especially when they disrupt local fish populations and coral reefs. However, they might have more resilience due to their size.
4. Deserts: Deserts have fewer species overall and may be less impacted by exotic species simply due to their harsher living conditions, but some invasive species can still cause harm.

Verify and Summarize

After examining the factors for each ecosystem, islands are particularly vulnerable due to their isolation and the high degree of endemism, making them especially susceptible to the introduction of exotic species. This can lead to significant ecological imbalances.

Final Answer

c. islands