Food-based categorization
Talking about groups
relationships
research techniques
Energy
100
What kind of organisms must eat other organisms to survive?
What are heterotrophs
100
a group of genetically similar living organisms that are able to interbreed and produce fertile offspring
what is a species
100
organisms that hunt prey
what are predators
100
A way of comparing DNA sequences to check for relatedness
What is BLAST
100
how much energy is passed along from one trophic level to the next?
What is 10%
200
What kind of organism can make its own energy?
What are autotrophs
200
a group of members of the same species living together in the same place at the same time
what is a population
200
a type of symbiotic relationship where both organisms benefit.
what is mutualism
200
a diagram depicting interconnected energy flow between organisms of different species within an ecosystem
What is a food web
200
identify one source of energy loss between trophic levels
what is one of the following: heat from respiration, incomplete digestion, and excretion of waste products along the food chain.
300
What kind of animal only eats plants?
What are herbivores
300
A group of populations of different species living and interacting in a particular area.
what is a Community
300
a type of symbiotic relationship where one organism benefits and the other is unaffected
commensalism
300
A depiction of energy flow in an ecosystem in a specific pathway with one species at each level from producer through consumer.
what is a food chain
300
the mass of dried organic material which can be used as fuel in an ecosystem, expressed in terms of dry weight per unit area
what is biomass
400
What kind of organism obtains nutrients by consuming non-living organic sources
What are detritivores
400
All living things in an area plus the abiotic environment.
what is an ecosystem
400
a type of symbiotic relationship where one organism benefits and the other is harmed
parasitism
400
A statistical technique that can be used to see if
two species colocalizewhat is a chi squared test
400
identify three of the nutrients that cycle in an ecosystem
what are three of the following: water, carbon, nitrogen, phosphorus, oxygen
500
What kind of organisms are heterotrophs that obtain organic nutrients from dead organisms by external digestion. These decomposers facilitate the breakdown of organic material by secreting digestive enzymes and absorbing nutrients (ex. fungi and bacteria)
What are Saprotrophs
500
the branch of biology where scientists study ecosystems and the interactions of the biotic and abiotic factors
what is ecology
500
the broad term that covers mutualism, parasitism, and commensalism
what is symbiosis
500
an experimental tool that allows the experimenter to control the conditions in a small part of the natural environment. It can act as a model of a larger ecosystem, in which energy enters and leaves but matter does not.
what is a mesocosm
500
units used in the pyramid of energy
energy per unit area of the ecosystem being studied per unit time. ex kilojoules per square meter per year, or kJ m−2yr−1