Unit 1 Flashcards
Define Environmental Science
The interdisciplinary study of Earth’s support system, and all of the social sciences as well.
What are five examples of life support systems?
- Nutrient cycling
- Evolution
- Soil formation
- Spatial structure
- Primary productivity
What are five types of provisioning services?
- Food
- Water
- Fuel wood
- Fiber
- Biochemicals
What are five examples of Regulating services?
- Climate regulation
- Disease regulation
- Water regulation
- Water purification
- Pollution
What are five examples of cultural services?
- Spiritual
- Religious
- Recreation
- Ecotourism
- Aesthetic
Explain how the natural sciences and social sciences interact in environmental sciences?
Cultural services control how a living species reacts to their environment, it affects disease, water, and how a species pollutes the environment around them. This affects the environmental science in an area.
Define ecology
Comes from the Greek word oikos meaning house( the study of houses)
The ecological study
Study of Earth
Define ecology
Comes from the Greek word oikos meaning house( the study of houses)
The ecological study
Study of Earth
What are the five levels of organization in the biosphere?
Population - given species
Community - all species
Ecosystem - Abiotic and biotic factors
Biome - large area with climate
Biosphere - portion of earth that supports life
What is a habitat?
An organisms address
What is a niche?
An organisms occupation or way of making a living: overall role in an ecosystem
What is an indicator species?
A species with a narrow range of tolerance for important biotic and abiotic factors within an ecosystem.
What is a keystone species?
A species that has a niche that contributes to many other species within the ecosystem.
What is a generalist species?
Will eat anything (raccoon)
What is a specialist?
Will only eat one thing (koala)
What are heterotrophs?
Organisms that consume other organisms. (Herbivores, carnivores, omnivores, scavengers)
What is an Autotroph
Organisms that make their own food (Plants, primitive)
What are detritivores?
Ingests non-living organic matter (earthworms, woodlice)
What are Saprotrophs
Lives in or on non living organic matter, secreting digestive enzymes into it and absorbing digestive products. (Bacteria and fungi)
What is afood chain?
A series of organisms in an ecosystem related by their feeding patterns
What is a food web?
A series of multiple overlapping food chains