living things Flashcards
what is a species
a species is at group of living things that can bread and produc fertile offspring.
what is a popullation
a popullation is the total number of organisms of the same species that live in a particular habitat
what is a community
a community is the name givrn to all the different popullations
what is biodiversity
is the variety of all life on earth
what is a food chain
a food chain shows the order of organisms each dependent on the next source of food
in the food chain, what is a producer
is when it makes its own food
in the food chain hwat is a consumer
organsims that eats another organism
what is ambudence
is the measure of how frequently a species appears in a particular area
what is the pitfall trap
a container plaed in the ground to trap animlas that are active at the soil surface
what is a biomatic factor
these are living factors in an area
what is an abiotic factor
a physical factor such as temperature or moisture
what does propagating plants mean
to produce plants on either sexual or asexual reproduction
what does sexual reproduction mean
requires 2 parents
what does asexul reproduction mean
requires only 1 parent
what is a seed coat
a tough protective outer covering on a seed
