Ecology Flashcards
a particular area inhabited by plants and animals
habitat
how an organism is suited to live in a particular place
adaptation
the range of different species in an environment
biodiversity
the arrows in a food chain show…
transfer of energy between organisms
how much energy is lost in each transfer
90%
all the energy in the food chain originates from
the sun
if a primary consumer’s population decreases, what is the effect
increase of producer population, decrease in secondary consumer population
what type of diagram shows how feeding relationships are interlinked
food web
plants compete for… (3)
light
minerals
water
farmers get rid of weeds with
herbicide
pesticides can end up in… (2)
rivers and streams
if a pesticide got into a lake, which organism would have the highest level (plants, fish, osprey)
osprey
what modern techniques do farmers rely on to ensure maximum crop yields (2)
pesticides and fertilizers
fertilizers washing into rivers can cause this
eutrophication
organic food is better for you because
it is grown without the use of artificial fertilizers and pesticides
the biggest impacts on the environment are made by
humans
improving the lives of today’s people, without damaging the quality of life for future generations
sustainable development
farming crises and food scares arise because
man has interfered too much with natural food production
the rio declaration encourages people to
act local, think global
10,000 units of energy available to a producer, how many available to the tertiary consumer
10 units
10,000 units of energy available to a producer, how many lost before getting to the tertiary consumer
9,990 units
anabolic
building up
catabolic
breaking down
metabolism
anabolic and catabolic speeds
