interaction ecosystem quiz

what is an ivasive species? give one example of an invasive species, different from the one offered in your nothes, and tell in which way it may have impacted the enviorment

an organism that takes over the enviorment that it is in. example; angel fish, humans, bullfrogs in australia

explain why food, abiotic conditions, and behaivor are important to an organisms niche

an organisms niche is impacted by how the organism behaves, what it eats, and the enviormental conditions it requires

a symbiotic relationship in which one species is helped, and the other species is neither helped nor harmed

commensalism

what kind of interaction is occuring between two students playing basketball

competition

give an example of how a density-dependent limiting factor might be affected by a density-independent limiting factor

density independent factors cause a decrease in density dependent factors

a shoreline mussel species has a population density of one organism per square meter. will all mussels be found one meter apart?

how many you have in an area does not determine how many you have spread out

changes in population size are determined by immigration, emigration, deaths and births. when a population is declining, which of these factors are increasing and which are decreasing

immigration is decreasing and birth is increasing and deaths increase and emigration is increase

Although termites can physically chew and ingest wood, they are incapable of chemically digesting cellulose into sugars. They rely on intestinal flagellates, e.g. Pyrrsonympha spp. and Trichonympha spp. which are capable of digesting cellulose into energy-rich sugar. These flagellates reside in the gut of termites and provide nutrition for them. The example of termites and the flagellate microorganisms best fit which symbiotic relationship and why?

mutualism

the symbiotic relationship shared among bee and flowers would be best describes as

mutualism

discuss two outcomes that could occur when two species such as owls and hawks live in the same habitat, and utilize the same resources

niche partitioning and evolutionary response

if two species are ecoligical equivalents will they experience competitive exclusion

no because they are not in the same region

the symbiotic relationship shared among humans and mosquitos would be best described as

parasitic or parasitism

distinguish between population size and population density

population size is how many population density- how tightly packed they are

when a cat hunts and eats a mouse the interaction occuring is known as

predation

what might be the advantages of having a clumped dispersal pattern

protection, more food,mating

name and describe one process that forms ecosystem

succession