Environmental Science Final Exam - REVIEW

Front

What percentage of energy is lost between each trophic level?

Back

90% of energy is lost between each trophic level.

Front

Which biome is characterized by cacti and coyotes?

Back

Desert is the biome that is home to cacti, mesquite, white thorn, pack rats, small reptiles, and coyotes.

Front

What do plants produce that is essential for animal survival?

Back

Plants produce food and oxygen, which are essential for animal survival.

Front

As human population increases, what happens to species extinctions?

Back

As human population increases, species extinctions will increase.

Front

What does biodiversity mean?

Back

Biodiversity refers to the variety of life in an ecosystem.

Front

What is the primary source of energy for ecosystems?

Back

The primary source of energy for ecosystems is the sun.

Front

What is a food chain?

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

Front

What is the role of producers in an ecosystem?

Back

Producers, such as plants, convert solar energy into chemical energy through photosynthesis.

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms interacting with their physical environment.

Front

What is the significance of keystone species?

Back

Keystone species are crucial for maintaining the structure of an ecological community.