NYS 8th Grade Science Review

Front

What are genes?

Back

Genes are segments of DNA that contain the instructions for the development and functioning of living organisms. They are found on chromosomes.

Front

What is a chromosome?

Back

A chromosome is a long, thread-like structure made of DNA and proteins that contains many genes. Humans have 23 pairs of chromosomes.

Front

What is an adaptation?

Back

An adaptation is a characteristic or trait that helps an organism survive and reproduce in its environment.

Front

What is ecological succession?

Back

Ecological succession is the process by which ecosystems change and develop over time, often following a disturbance.

Front

What is metabolism?

Back

Metabolism is the set of life-sustaining chemical reactions in organisms that convert food into energy and building blocks for growth.

Front

How do organisms exchange materials with their environment?

Back

Organisms exchange materials with their environment through processes like respiration, photosynthesis, and nutrient absorption.

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What is carbon dioxide?

Back

Carbon dioxide (CO2) is a colorless gas produced by burning fossil fuels and is a significant greenhouse gas contributing to climate change.

Front

What is the significance of fur color in polar bears?

Back

The white fur of polar bears is an adaptation that helps them blend into their snowy environment, aiding in hunting and avoiding predators.

Front

What is the role of recycling programs?

Back

Recycling programs help reduce waste and conserve resources by processing used materials into new products.

Front

What is the impact of burning fossil fuels?

Back

Burning fossil fuels releases carbon dioxide and other greenhouse gases into the atmosphere, contributing to global warming.