Biomes
The most common types of plants found in the tundra are: flowing vines, mosses, coniferous trees
mosses
Break down dead matter to be recycled and used again in the ecosystem.
Anything produced that harms the environment is called
pollution
Name one way populations of ecosystems change
invasive species
over hunting
animals move away
What is a carnivore?
meat eater
Which biome covers the largest part of Earth?
saltwater
An animal that eats other dead animals that it did not kill itself is called
scavenger
What is the cycle called the processes nitrogen in our environment so that it can be used?
Nitrogen cycle
Name a way humans can change in ecosystem
over hunting, introducing invasive species, littering, fossil fuels, over foresting, draining waterways, damming streams, etc.
The most important materials in an ecosystem are sunlight, water, (2 more)
Carbon dioxide and oxygen
What is an estuary?
Where freshwater and saltwater meet and mix
Why are non-living parts of an ecosystem important?
Provides shelter and determines what can survive there
Energy is released in cells during the process of what (how cells "breathe")?
respiration
When two or more animals attempt to use the same resource
competition
What is a herbivore?
plant eater
Which biome has the most of Earth's species?
Rain Forest
The organism at the bottom of a food chain is ALWAYS what (producer, consumer, decomposer)?
a producer
A food pyramid is used to show what?
How much energy is available at each level of the food chain
What do some animals do when their environment changes for a certain amount of time during the year?
migrate
What is an omnivore?
Eats both plants and animals
Which biome has cone-bearing trees?
coniferous forest (taiga)
What do we call how energy flows within an ecosystem?
food chain
Nitrogen is returned to the atmosphere when
material is decomposed
How can human protect ecosystems?
plant trees, pick up litter, recycle, etc.
What is the name of the giant pile of garbage in the ocean?
Great Pacific Garbage Patch