UNITY TEST 5 STUDY GUIDE Flashcards
Ecology
The study of interactions between organisms and the living and nonliving components of their environment
What are the levels of life
Biosphere Ecosystem Community Population Organism
Interdependence
All organisms depend on one another to survive through interactions
Ecological models
A representation of the components of an ecological system
Biosphere
The most inclusive level of life, sorounds in the atmosphere
Ecosystems
The smaller units of the biosphere including all organisms and the non living environment found in a particular place
Communities
All of the interacting organisms living in an area, specifically in an ecosystem
Population
Including all members of one species that live in an ecosystem
Organism
The individual organism in a population
Habitat
The place where an organism lives
Niche
The way of life of a species in its environment
Abiotic Factors
Non-living components of an environment
Biotic Factors
Living components of an environment
Consumers
All animals who consume other organisms or organic wastes
Producers
Organisms that produce their own food (Plants)
Carnivores
Animals that eat other consumers
Herbivores
Animals that eat plants
Detritivores
Animals that feed off of the garbage in an environment
Omnivores
Animals that eat both plants and animals
.Biomass
the total mass of organisms in a given area or volume.
Carbon cycle
The recycling of carbon in the environment
Nitrogen cycle
The cycle of nitrogen being recycled throughout the environment
Nitrogen fixation
The process of converting N2 gas to nitrate
Trophic levels
Indication of the organism’s position in a sequence of energy transfers
Biogeochemical cycles
Non living substances passing through the environment
Water cycle
The cycle in which water evaporates and returns to the environment
Phosphorus cycle
The movement of Phosphorus from environment to organisms and then back to the environment (Phosphorus is essential to form bones, teeth, and parts of molecules such as DNA and RNA )
Carrying Capacity
the number of people, other living organisms, or crops that a region can support without environmental degradation
How many people live in developing countries
80 percent