ENV SCI GENED MID TERM EXAM

Front

Which biomes have the most species diversity?

Back

Coral reefs and rainforests are known for having the highest species diversity due to their complex ecosystems and favorable climates.

Front

What is the environment called where an organism lives?

Back

Habitat: The natural home or environment of an organism, providing the necessary resources for survival.

Front

What percentage of Earth's water is freshwater?

Back

2-3% of Earth's water is freshwater, which is essential for drinking, agriculture, and ecosystems.

Front

Which type of plate boundary is associated with the creation of new oceanic crust?

Back

Divergent boundary: This is where tectonic plates move apart, allowing magma to rise and form new oceanic crust.

Front

What is the primary source of energy for most ecosystems?

Back

Sunlight: It is the main energy source that drives photosynthesis, supporting the food chain.

Front

Define biodiversity.

Back

Biodiversity refers to the variety of life in a particular habitat or ecosystem, including the number of species, genetic diversity, and ecosystem diversity.

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms interacting with their physical environment, including both biotic and abiotic factors.

Front

What is a niche?

Back

A niche is the role or function of an organism within its ecosystem, including its habitat, resource use, and interactions with other organisms.

Front

Explain the water cycle.

Back

The water cycle is the continuous process by which water evaporates, condenses, and precipitates, cycling through the atmosphere, land, and bodies of water.

Front

What is the difference between renewable and non-renewable resources?

Back

Renewable resources can be replenished naturally over time (e.g., solar energy), while non-renewable resources exist in finite amounts and cannot be replaced (e.g., fossil fuels).