Shortened Assessment Unit 2 Test-Ecology

Which of the following is a primary producer in the ocean?

• Tuna

• Phytoplankton

• Shark

What is the process by which a lake becomes nutrient-rich over time?

• Eutrophication

• Photosynthesis

• Salinization

Which of the following is a factor that affects the water temperature in a lake?

• Latitude

• Water depth

• All of the above

What is the primary source of water for lakes?

• Groundwater

• Rivers and streams

• Rainfall

What role do producers, such as plankton, play in aquatic biomes?

• They break down dead material

• They provide oxygen for aquatic life

• They form the base of the food chain by converting sunlight into energy

Which of the following is an example of a biotic factor in an ocean ecosystem?

• Water temperature

• Salinity

• Phytoplankton

What factor primarily limits tree growth in grassland biomes?

• Temperature

• Soil nutrients

• Rainfall

Which of the following is a characteristic adaptation of plants in the chaparral biome?

• Deep roots

• Waxy leaves

• Broad leaves

Which statement about grasslands is correct?

• They have frequent rainfall

• Trees are the dominant vegetation

• They are maintained by periodic fires

Which biome is most threatened by climate change?

• Desert

• Tundra

• Rainforest