Energy & Organisms and the Environment STUDY GUIDE
PART 1: Energy in Ecosystems
Plants
Animals
PART 2: Organisms and the Environment
Populations
Habitats and Niches
Trophic Relationships
Relationships Among Organisms
Overpopulation
PART 1: Energy in Ecosystems
- How does energy flow through ecosystems?
- Why is food important for organisms?
- Why are all organisms connected to each other?
Plants
- How do plants obtain and store energy from the environment?
- How does plant structure aid in photosynthesis?
- Why are plant reproductive structures ideal for plant reproduction?
Animals
- What are the basic living building blocks that make up animals?
- How do animals reproduce?
- How does an animal’s behavior and structure allow it to obtain energy from its environment?
PART 2: Organisms and the Environment
Populations
- What is a population?
- What factors in a habitat can limit population size?
Habitats and Niches
- What nonliving substances are important to living organisms?
- What is the difference between an ecosystem, a habitat, and a niche?
Trophic Relationships
- What is a trophic level?
- How do different populations from the same trophic level interact?
- How do populations from different trophic levels interact?
Relationships Among Organisms
- How do different organisms in a community obtain energy from their environment?
- What kinds of relationships exist between organisms in a community?
- Why is the sun an important source of energy for all living things?
Overpopulation
- Why does overpopulation occur?
- What problems does overpopulation cause?
- How can overpopulation be reduced?