an organism that create its own energy by using sunlight; there needs to be more of these to support an ecosystem
What is a prodcuer?
100
this is why animals can live in the same ecosystem
What is they live in different parts, eat different things, or occupy live in different niches?
100
this human activity greatly reduces animal population by destroying large areas of habitat to build houses and farms
What is deforestation?
100
the source of all energy in a food chain
What is the sun?
100
a reason why large trees have a difficult time growing in frigid ecosystems
What is permafrost?
200
an organism that eats other animals
What is a carnivore?
200
this is what prevents plants from growing in thick forests
What is the canopy or tree coverage?
200
introducing unnatural materials into the air, water, and soil
What is pollution?
200
the part missing from this food chain
sun-?-grasshopper-frog-snake-hawk
What is grass?
200
animals and plants in this ecosystem have adapted to their environment by being able to store water for longer periods of time
What is a desert?
300
a cosnumer that eats materials that are already dead
What is a scavenger?
300
these are needed to support a large variety of organisms over a long period of time
What are many different kinds of plants?
300
fertilizers and other materials that can runoff into nearby lakes, streams, and ponds and can cause an increase in algae population
What are increased nutrients?
300
the type of organism that is always after the sun in a food chain
What is a producer?
300
a producer that grows on the tops of ponds and are also affected by an increase in nutrients
What is algae?
400
an organism that recycles nutrients from waste and other dead materials back to the earth
What is a decomposer?
400
area of water ecosystems that have very little vegetation because
What is at the bottom?
400
a human activity meant to stop water flow and to create electricity, but that is harmful to animals because it destroys habitats and blocks fish from swimming up or down a river
What is building a dam?
400
a bunch of food chains put into one diagram
What is a food web?
400
an ecosystem where trees change color
What is a deciduous forest?
500
a consumer that eats both producers and other animals
What is an omnivore?
500
if this is decreased then there will be a decrease in producers
What is sunlight?
500
the reason why deer would move to another location
What is no vegetation?
500
these animals are always at the top of the food chain and there are also less of these organims
What are predators?
500
a biome made of ice that has a short growing season and very carnivores