Formative Assessment--Final

What is the main idea of the video’s opening?

• A. Ecosystems are permanent and unchanging

• B. Volcanoes are the biggest threat to ecosystems

• C. Ecosystems are vulnerable to collapse even without disasters

• D. Deserts and reefs are the strongest ecosystems

From Day #1: Which of the three types of biodiversity (ecosystem, species, genetic) do you think is most important? Why?

How do animals like tapirs and agoutis help support biodiversity in the Amazon rainforest?

• A. They spread seeds that allow new plants to grow

• B. They destroy vines and trees

• C. They eat all the seeds before they grow

• D. They produce soil nutrients

What might happen to the forest ecosystem if seed-dispersing animals disappeared?

From Day #2: How might human activities affect the ability of an ecosystem to recover from losing a species?

What makes coral a keystone species?

• A. It is the only plant in the reef

• B. Many species rely on it for shelter and survival

• C. It hunts for fish

• D. It survives in deserts

Why is biodiversity important for human survival?

Based on today’s video, how would you explain the importance of biodiversity to someone who thinks “losing one species doesn’t matter”?