Ecology Flashcards
What is the biosphere?
Place where life exists on earth
The highest level of organization
What is the organization of the earth’s systems?
(6) from largest to smallest Biosphere Biome Ecosystem Community Population Organism
What is a community?
Consists of living things that interact with non Living things
What is the population?
Group of individuals in the same species hat interbread, produce fertile offspring, and compete with each other
What is the niche?
The role a species plays in a community; it’s total way of life
What is a individual?
An organism
What is the carrying capacity?
The number of individuals that can be sustained by a habitat
What is symbiosis?
2 species living together and there are three types
What is the food chain?
A simple model that shows one path of energy
What is the food web?
An expanded more complete version of the food chain, showing all possible energy paths
What is the energy pyramid?
A graphical model of energy flow in a community At the top is the tertiary consumer Then the secondary consumer The third is primary consumer The bottom is producer
What is predation?
When a predator hunts its prey for food
How do you interpret human population growth?
The horizontal axis represents time, the vertical axis shows the total world population size
A population that grows at a constant rate is a straight line
15.) What are the roles of the producers,consumers, and decomposers in a community?
Producers: make their own food,
Consumers:ingest food
Decomposers:break down the food
What is the biomass?
The amount of living matter on the planet
What is the habitat?
The place in which the organism lives out its life
What are the 3 main types of feeding relationships?
- Producer–consumer
- predator–prey
- Parasite–host
What are the three types of symbiosis?
- Commensalism
- Parasitism
- Mutualism
What are tropic levels?
Each link in a food chain is known as a feeding step
The tropic levels represent a feeding step in the transfer of energy and matter in an ecosystem
What’s ecology?
The scientific study of interactions between organisms and their environment focusing on energy transfer
Ecology is the science of?
Relations ships
What are the two factors that the environment is made up of?
Biotic–all living organisms inhabiting the earth
Abiotic–no living parts of the environment (temp, soil, light)
What is an organism?
Any unicellular or multicellular form exhibiting all of the characteristics of life, an individual
The lowest level of organization
14.)What info is missing from the biological community (Graph)
cfy
