Chapter 3 Flashcard Biology

Front

What is a characteristic of the littoral zone of Lake Erie?

Back

The littoral zone is characterized by floating aquatic plants.

Front

What percentage of Earth’s water is considered freshwater?

Back

Approximately 2.5 percent of Earth’s water is freshwater.

Front

What percentage of Earth’s freshwater is contained in glaciers?

Back

About 69 percent of Earth’s freshwater is contained in glaciers.

Front

What is an example of a limiting factor in an ecosystem?

Back

Wolves preying on and reducing the deer population in a forest is an example of a limiting factor.

Front

How are biomes primarily classified?

Back

Biomes are primarily classified by their plant life.

Front

Define the littoral zone.

Back

The littoral zone is the nearshore area of a lake or pond where sunlight penetrates to the bottom, allowing aquatic plants to grow.

Front

What role do autotrophs play in an ecosystem?

Back

Autotrophs, such as plants, produce their own food through photosynthesis and serve as the primary producers in an ecosystem.

Front

Explain the significance of biodiversity in an ecosystem.

Back

Biodiversity contributes to ecosystem resilience, productivity, and stability, allowing ecosystems to adapt to changes.

Front

What is the water cycle?

Back

The water cycle is the continuous process by which water evaporates, condenses, and precipitates back to Earth.

Front

What is a biome?

Back

A biome is a large geographic biotic unit, a major community of plants and animals with similar life forms and environmental conditions.