Science Olympiad Pretest

Front

What is a cell wall?

Back

A rigid outer layer found in plant cells that provides structure and support.

Front

What is the order of biological organization from smallest to largest?

Back

Atoms, molecules, cells, tissues, organs, systems.

Front

What role do sea otters play in the ocean bay food chain?

Back

They help control the population of sea urchins, which affects other species in the ecosystem.

Front

What is the primary function of digestion?

Back

To break down food into nutrients that the body can absorb.

Front

What is the immune system?

Back

The system in the body responsible for defending against harmful antigens.

Front

What is a vacuole?

Back

A storage organelle found in plant cells that holds various substances.

Front

What is the function of the nucleus in a cell?

Back

It acts as the control center, containing the cell's genetic material.

Front

What are tissues?

Back

Groups of similar cells that work together to perform a specific function.

Front

What is the role of organs in biological systems?

Back

Organs are structures made of different tissues that perform specific functions in the body.

Front

What is a food chain?

Back

A sequence that shows how energy and nutrients flow from one organism to another.