UNIT 3.1 REVIEW

Front

What is a decomposer?

Back

A decomposer is an organism that breaks down dead or decaying organic material, returning nutrients to the soil. Example: mushrooms.

Front

What are the products of photosynthesis?

Back

The products of photosynthesis are glucose and oxygen.

Front

What is a physical change?

Back

A physical change is a change in size, shape, or state of matter without altering its chemical composition.

Front

What is the correct order of physical digestion in the body?

Back

1. Chewing food in the mouth 2. The esophagus pushing food to the stomach 3. The stomach churning and mixing food 4. Absorption in the small intestine.

Front

What is radiant energy also known as?

Back

Radiant energy is also called solar energy.

Front

What role do decomposers play in an ecosystem?

Back

Decomposers recycle nutrients back into the ecosystem, helping to maintain soil health.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants use sunlight to convert carbon dioxide and water into glucose and oxygen.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change affects the form of a substance, while a chemical change results in the formation of new substances.

Front

What is the function of the esophagus in digestion?

Back

The esophagus transports food from the mouth to the stomach.

Front

What is the importance of glucose in living organisms?

Back

Glucose is a primary energy source for cells and is essential for cellular respiration.