OSE 7.5 - Lessons 1-4 Quiz

What is not a food source for orangutans?

• Durians
• Termites
• Figs
• Oil Palm Plants

Which of the following is abiotic factor?

• Sunlight
• Water
• Air
• Sunlight, Water and Air are all abiotic factors.

Which of the following organisms would likely increase in number if tropical rainforests are replaced with oil palm plantations?

• Orangutans
• Tigers
• Rats
• None of the above

What role do human activities play in altering ecosystems?

• They can significantly alter or destroy natural habitats.
• They are entirely unrelated to ecosystems.
• They have only positive impacts.
• They improve natural habitats automatically.

Why is palm oil considered more efficient than other oils?

• It tastes better.
• It is less popular.
• It grows in cooler climates.
• It requires less land to grow.

What is a direct consequence of cutting down rainforests for oil palm plantations?

• Decrease in orangutan and tiger populations
• Increased rainfall in the area
• An increase in the diversity of plant species
• Cooler temperatures in the region

What happens to orangutan populations when their food resources become limited?

• Their population sizes increase significantly.
• They adapt by learning to eat oil palm plants.
• Their growth or survival potential is decreased.
• They migrate to urban areas (cities).

How does the requirement of sunlight, precipitation, and warm temperatures for oil palm growth relate to its impact on ecosystems?

• These conditions do not impact ecosystems.
• They ensure that oil palm plants can only grow in urban areas (cities).
• Oil palms grow in conditions that are also ideal for rainforests, leading to deforestation.
• They make oil palms suitable for desert regions.

What effect does the availability of resources (food, water, habitat space) have on organisms in an ecosystem?

• It has no effect, organisms adapt instantly
• It determines the size and health of populations
• It changes the color of the organisms
• It makes the organisms move to urban areas (cities)

How can changes to an ecosystem affect its populations?

• They have no significant impact
• They can lead to increased biodiversity
• They can increase or decrease population sizes.
• They can make the ecosystems more stable.