SCIENCE FIRST TERM 1 REVIEW

Notes

SCIENCE FIRST TERM – REVIEW • Subtopic: Definition of Ecology Ecology is the study of organisms that interact with each other. • Subtopic: Distinction Between Biotic and Abiotic Factors **Abiotic Factors:** Non-living things that are part of an ecosystem and shape its environment. These include sunlight, climate, soil, water, and air. **Biotic Factors:** Living organisms that shape their environment in the ecosystem. These include plants, animals, bacteria, fungi, and protists. Biotic factors also encompass remains of organisms that have died. • Subtopic: Interactions Between Individuals, Populations, Communities, and Ecosystems [Image of various ecosystems, biomes, and interactions] (Description of interactions can include predator-prey relationships, competition, symbiosis, etc., but specific details are not provided in the text.) • Subtopic: Habitat and Niche **Habitat:** The place where an organism usually lives. **Niche:** The role a population plays in the ecosystem, including aspects such as: - Types of food they eat - Where they live - Where they reproduce - Relationships with other species • Subtopic: Levels of Organization in the Environment ...