Chapter 3 Flashcard Biology

Front

What is the abyssal zone?

Back

The abyssal zone is the deepest part of the ocean, characterized by extreme pressure, low temperatures, and a lack of light. It is difficult for marine biologists to explore due to its depth.

Front

What percentage of Earth's water is freshwater?

Back

Approximately 2.5 percent of Earth's water is considered freshwater.

Front

What is a characteristic of a savanna?

Back

A savanna is characterized by grasses with trees intermixed, typically found in regions with a seasonal climate.

Front

What is the deepest ocean region?

Back

The abyssal zone is the deepest ocean region.

Front

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

Back

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

Front

Define the photic zone.

Back

The photic zone is the upper layer of the ocean where sunlight penetrates, allowing photosynthesis to occur.

Front

What is the intertidal zone?

Back

The intertidal zone is the area of the shoreline that is exposed to the air at low tide and submerged at high tide.

Front

What is the aphotic zone?

Back

The aphotic zone is the part of the ocean where there is little to no sunlight, making photosynthesis impossible.

Front

What are the main characteristics of the oceanic zone?

Back

The oceanic zone is characterized by deep waters, low nutrient levels, and a variety of marine life adapted to these conditions.

Front

What is the significance of wetlands?

Back

Wetlands are important ecosystems that provide habitat for wildlife, help filter pollutants, and act as natural water storage areas.