Biology Concepts and Processes

This video tutorial for sixth graders provides an overview of life sciences, focusing on the unity and diversity of life, fundamental themes of biology, ecological relationships, and Earth's biogeochemical cycles. It includes lessons on cell theory, gene theory, homeostasis, metabolism, and evolution, as well as ecological levels and biogeochemical cycles. The tutorial aligns with NGSS standards and includes assessments and extended activities to enhance understanding.

What is the basic unit of life that all living organisms are composed of?

• Tissues

• Molecules

• Cells

• Atoms

Which process is responsible for the conversion of food into energy in living organisms?

• Photosynthesis

• Respiration

• Digestion

• Metabolism

How do organisms maintain a stable internal environment despite external changes?

• Metabolism

• Evolution

• Homeostasis

• Adaptation

What is the term for the process by which species evolve over time through natural selection?

• Speciation

• Adaptation

• Evolution

• Mutation

In a community, what type of relationship involves one organism benefiting while the other is neither helped nor harmed?

• Mutualism

• Competition

• Parasitism

• Commensalism

Which biome is characterized by its cold climate and presence of permafrost?

• Rainforest

• Savanna

• Tundra

• Desert

What is the primary driver of the water cycle on Earth?

• Wind

• Gravity

• Sunlight

• Tides

Which cycle involves the conversion of nitrogen gas into a form usable by plants?

• Carbon Cycle

• Oxygen Cycle

• Nitrogen Cycle

• Water Cycle

How does photosynthesis contribute to the carbon cycle?

• By breaking down carbon compounds

• By absorbing carbon dioxide

• By producing oxygen

• By releasing carbon dioxide

What is the role of DNA in living organisms?

• To transport nutrients

• To encode genetic information

• To protect cells

• To provide energy