8th Grade Science Review #1

Front

What organ system takes in oxygen and releases carbon dioxide?

Back

Respiratory system

Front

What are plants that use sunlight to make their own food called?

Back

Producers, which produce energy for the rest of the ecosystem

Front

Which type of cells would most likely have the most mitochondria?

Back

Muscle cells in the leg muscles of a runner

Front

How many producers are typically found in a food web?

Back

2

Front

What is the function of mitochondria in cells?

Back

Mitochondria are the powerhouses of the cell, producing energy through respiration.

Front

What is photosynthesis?

Back

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

Front

What is the role of consumers in an ecosystem?

Back

Consumers are organisms that eat other living things for energy.

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 difference between a food chain and a food web?

Back

A food chain shows a single pathway of energy flow, while a food web shows multiple interconnected food chains.

Front

What is the primary source of energy for most ecosystems?

Back

The Sun is the primary source of energy for most ecosystems.