STAAR Review 2024

Front

What are pioneer species?

Back

Pioneer species are the first organisms to colonize an area and begin the process of ecological succession.

Front

Why do scientists classify living things?

Back

Scientists classify living things to identify organisms and avoid confusion.

Front

Which of these is most likely an enzyme?

Back

Amylase is an enzyme that helps in the digestion of carbohydrates.

Front

What is commensalism?

Back

Commensalism is a relationship where one organism benefits and the other is unaffected.

Front

What are autotrophs?

Back

Autotrophs are organisms that produce their own food, usually through photosynthesis.

Front

What is the role of producers in an ecosystem?

Back

Producers form the bottom trophic level and provide energy for other organisms by producing their own food.

Front

Define ecological succession.

Back

Ecological succession is the process by which ecosystems change and develop over time.

Front

What is the difference between mutualism and commensalism?

Back

In mutualism, both organisms benefit, while in commensalism, one benefits and the other is unaffected.

Front

What is an enzyme?

Back

An enzyme is a protein that acts as a catalyst to speed up chemical reactions in the body.

Front

What is the significance of trophic levels?

Back

Trophic levels represent the hierarchical levels in an ecosystem, indicating the flow of energy and nutrients.