Bacteria break down organic matter and return carbon dioxide and water to the environment. This is an example of ___________________. 

A bird eats a worm. Who is the predator?

An envioronmental study reporting on the way temperature, water quality, and minerals affect the animals in a salt marsh would be considered which level of organization?

individual organism

community

population

ecosystem

Organisms that only eat other animals are ____________________.

In a food web, arrows point in just one directio because they show: 

which animal is bigger

which animals are related

how energy goes to the animal that is eating

how energry goes to the animal that is eaten

Which is the following is abiotic?

fish 

grass

an alligator

water

Whic isi a n example of an abiotic element changing an area?

introducing a new type of grass

two species of birds competing

water flooding the area

algae growing on crabgrass

Herbivores, carnivores, and omnivores are all ____________________. 

decomposers

predators

producers

consumers

Organisms that only eat plants are _____________________.

Three organisms on the food web have arrorws pointing away from them an no arrows pointing toward them. They are: 

omnivores

decomposers

herbivores

producers

The five levels of organization in the environment, from first to fifth level are: 

The variety of species present in an area is called: 

carrying capacity 

biodiversity

limiting factor

symbiosis

It has been a very harsh winter. The ground is covered in snow, and the trees are convered in ice. Many deer die. This is an example of ___________________.

A relationship where one organism benefits and the other is harmed is _________________

Three organisms on the food web have arrows pointing toward them but no arrows pointing away from them. This is because: 

they make their own food

nothing shown eats them

they give energy to others

Grass is eaten by a prairie dog. The prairie dog is eaten by a coyote. This is an example of: 

an abiotic element

a herbivore

an omnivore

a food chain

An organism's _______________ is its role in its envioronment - how it obstains food and shelter, finds a mate, cares for its young, and aviods danger. 

Organisms that eat both plants and animals are ________________.

A relationship between two organisms in which both benefit is ____________________

Grasshoppers eating grass, coyotes eating grasshoppers is just one example of a __________________ in a food web. 

The largest population an envioronment can support is its: 

carrying capacity

populations

limiting factor

symbiosis

Limiting factors determine an area's carrying capacity because: 

Organisms that make their own food from sunlight are ___________________. 

A relationship between two organisms in whic one benefits and the other is not affected is ___________________________.

Provide and explain 2 positive ways and 2 negative ways humans impact the enviornment