the level of where an animal stands in the ecosystem, with producers on the bottom and tertiary consumers on the top.
Get's it's energy directly from the sun. It's the bottom of the trophic(energy) pyramid.
eat's the producer. gains 10% of the 100% that the producer had because only ten percent of the energy get's passed off.
Eats the primary consumer. Gains 1% of the energy that the primary consumer had.
eats the secondary consumer. gains .1% because ten percent of energy is passed on. 90% is lost, mostly in heat
process in which the communites change over time
killed 1/3 of europes population, and caused a dip in the world population. it was a disease that went through and infected your lungs and sometimes even got into your blood stream. there were two strains that were almost always fatal, and one that about half survived
temperate deciduous Forest biome
Coniferous Forest biome
rivers lakes, streams, ponds and frogs and animals
grass, lots of grass, climate; very hot or mild
cold, icy, along the poles and at high elevations, rugged, mountains.
dry, arid, hot, sometimes sand, sometimes rocky, and cactus
evergreen trees*needles*, average rainfall, temperature depends on where, and pine trees.
mild climate, lose their leaves and change colors, we live in a mostly temperate deciduous forest.
Lots of rain, humid and warm, along equator, lots of plants and animals.
Not very accurate. They show where energy is teansferred but do not show that animals eat more than one animal. They are uncomplicated and not very realistic
A complicated, accurate show of what an animal eats. In one ecosystem there are numerous animals that eat numerous things and unlike a food chain, food webs show you that.
These are things that are not living, never was living, and never will be living. They are things such as wind direction, glass, and water.
These are things that are living, were living, or that are part of a living thing. such as an eyelash or a ladybug or a dinosaur.
variety of animals in a specific geographical area.
This is a place that holds the most species of plants and animals in the world. There is 17 of them and if you cut down even a small part of one of these tropical 17 spots, it could drastically change the animal&plant balance.
occurs in a place where an ecosystem never existed.
process that begins when something has disturbed or destroyed the natural community (burned or cut forests, heavily polluted streams, abandoned farmlands, areas that have been inundated with flood water
one that forms in the last stage of succession
Pioneer species establish themselves at the start of succession and when they die, they provide nutrients to later animals
these are things that keep a species from reaching it's carrying capacity, like drought, other animals, natural disasters..etc.
this is the amount of one species that an ecosystem can sustain without collapse
how much our population has grown in the years, and now it's growing at an alarming rate.
this is when everything became more modern and there was more hygiene and better living conditions, also machines and electricity were beign made, which made life better/easier
eg; this is when we are doubling and then doubling again and again, and the period between the doubling get's shorter and shorter and shorter s; this is when we are stable and no longer too large or to small and when we can realize that we are using to mucha and we have to be able to support us.
when something is growing exponentially and then it is leveled off when it reaches carrying capacity by limiting factors
a logistic graph. it starts with a j-curve then levels off into an s-curve when carrying capacity is reached and limiting factors take hold.
this is an exponential graph, it shows exponential growth by starting out low and shooting up and increasing very fast
this is the rate the population is growing at. how fast it is and how much.
this is when there is chemicals and toxins in the water and is killing aquatic life.
point source; when pollution comes from one single source. it is relitively easy to find out who did it because there is a single culprit. example; when a factory or a place having toxic waste dumps it into a river and kills aquatic life. non-point source; when pollution comes from many different sources. this is more difficult to find because it could be many things causing it. example; fertilizer runoff into a stream or pond.
an underground source of water