Organic Species – Biology Quiz

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Organic Species – Biology Quiz

The key terms of Biology Quiz include, Organic, Species, Organisms, Habitat.


detritivores 

organisms that eat organic wastes and dead bodies


biomass 

the dry weight of tissues and other organic matter found in an ecosystem


nitrogen fixation

 the process of combining nitrogen with hydrogen to form ammonia


secondary compounds 

defensive chemicals contained in most plants


symbiosis

 two or more species live together in a long-term association


mutualism

 a symbiotic relationship where both benefit


commensalism

 a symbiotic relationship where one species benefits and the other is unchanged


homologous structures

 structures that share a common ancestry


speciation

 process by which new species form


taxonomy

 science of naming and classifying


genus 

category containing similar species


order of classification

 Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species


biological species 

a group of natural populations that are interbreeding or that could interbreed, and are reproductively isolated from other groups


cladogram

 diagram that shows the evolutionary relationships


population density 

number of individuals living in a given area


carrying capacity

 population size that an environment can sustain


Thomas Malthus 

suggested to Darwin that populations have carrying capacities


Charles Lyell

 wrote the Principles of Geology and taught Darwin about the changes of the Earth


K strategist

 have few offspring, but care for each one


R strategist

 have hundreds or thousands of offspring hoping that only a few will survive


ecology

 the study of the interactions of living organisms with their physical environment


habitat

 the place where a population of a species lives


community

 the different species that live together in a habitat


ecosystem

 a community and all the physical aspects of its habitat


abiotic factors

 physical aspects of a habitat


biotic factors 

organisms living in a habitat


succession

 regular progression of species replacement


primary productivity

 rate of the primary producers (plants)


producers

 organisms that first capture the energy


consumers 

organisms that consume the plants


detritivores 

organisms that eat organic wastes and dead bodies


biomass 

the dry weight of tissues and other organic matter found in an ecosystem


nitrogen fixation

 the process of combining nitrogen with hydrogen to form ammonia


secondary compounds 

defensive chemicals contained in most plants


symbiosis

 two or more species live together in a long-term association


mutualism

 a symbiotic relationship where both benefit


commensalism

 a symbiotic relationship where one species benefits and the other is unchanged