Honors Biology Ecology Exam With Complete Solution
population - A group of individuals that belong to the same species and live in the same
area
ecosystem - A biological community of interacting organisms and their physical
environment.
community - A group of different species that inhabit in the same habitat and interact
with one another
examples of density-dependent factors - Infectious diseases; predators; competition for
food, water or other resources; space
examples of density independent factors - Answer a) Natural disasters, example:
earthquakes, landslides, forest fire, climate or weather, loss of habitat due to human
actions
examples of abiotic factors - Answer habitat loss, natural disasters, temperature,
drought, soil
examples of biotic factors - Answer food, parasites, predators, competition, disease
herbivore - Answer eats only plants
examples of abiotic factors - Answer habitat loss, natural disasters, temperature,
drought, soil
autotroph - An organism capable of capturing energy from either sunlight or chemicals
, and storing it as chemical bonds in food producer
heterotroph - An organism that cannot produce its own food and obtains food by
consuming other living organisms consumer
amount of energy available to primary consumer if there are 1000 kcal in the first
trophic level - Answer 100 kcal
amount of energy available for secondary consumer if there are 1000 kcal on the first
trophic level - Answer 10 kcal
trophic levels - Answer steps in a food web or energy pyramid
natality - Answer birthrate
mortality - Answer death rate
immigration - Answer movement of individuals into an ecosystem
emigration - Answer movement of individuals out of an ecosystem
mutualism - Answer A relationship between two species in which both species benefit
that would tend to reduce a population Increasing numbers of predators, death rate, or
emigration; decreasing immigration or natality
organism type on the second tropic level herbivore
things that would tend to increase a population Decrease in predators, death rate, or
emigration; Increase in natality or immigration
at which trophic levels are secondary consumers possible Third tropic level or higher
effect of an increase in predators and in natality - Resposta stable population
population - A group of individuals that belong to the same species and live in the same
area
ecosystem - A biological community of interacting organisms and their physical
environment.
community - A group of different species that inhabit in the same habitat and interact
with one another
examples of density-dependent factors - Infectious diseases; predators; competition for
food, water or other resources; space
examples of density independent factors - Answer a) Natural disasters, example:
earthquakes, landslides, forest fire, climate or weather, loss of habitat due to human
actions
examples of abiotic factors - Answer habitat loss, natural disasters, temperature,
drought, soil
examples of biotic factors - Answer food, parasites, predators, competition, disease
herbivore - Answer eats only plants
examples of abiotic factors - Answer habitat loss, natural disasters, temperature,
drought, soil
autotroph - An organism capable of capturing energy from either sunlight or chemicals
, and storing it as chemical bonds in food producer
heterotroph - An organism that cannot produce its own food and obtains food by
consuming other living organisms consumer
amount of energy available to primary consumer if there are 1000 kcal in the first
trophic level - Answer 100 kcal
amount of energy available for secondary consumer if there are 1000 kcal on the first
trophic level - Answer 10 kcal
trophic levels - Answer steps in a food web or energy pyramid
natality - Answer birthrate
mortality - Answer death rate
immigration - Answer movement of individuals into an ecosystem
emigration - Answer movement of individuals out of an ecosystem
mutualism - Answer A relationship between two species in which both species benefit
that would tend to reduce a population Increasing numbers of predators, death rate, or
emigration; decreasing immigration or natality
organism type on the second tropic level herbivore
things that would tend to increase a population Decrease in predators, death rate, or
emigration; Increase in natality or immigration
at which trophic levels are secondary consumers possible Third tropic level or higher
effect of an increase in predators and in natality - Resposta stable population
