Levels of Organization
Food Chains
Population Probelms
Wild Card
Population Changes
100

What is the smallest "level" in an environment?

Individual

100

All food chains begin with

The sun

100

What a predator may hunt and eat for food

Prey


100

More births than deaths usually causes a population to do this.

Increase

100

A population grows too large and it may damage the environment or ecosystem

Overpopulation 

200

Groups or individuals of the same species are

Population

200

The organism that eats plants is called

Herbivore

200

A realistic number of individuals that live in a population

Carrying Capacity

200

A limiting factor that organisms compete for in crowded ecosystems

Space
200

An organism may disappear forever

Extinction

300

All the different populations in an area

Community 

300

The organism that eats plants and animals is called

Omnivore 

300

The reason(s) why populations cannot grow to their max number

Limiting Factors 

300

If insects disappear, predict one effect on birds in a food web

Their population will decrease

300

A population at risk of extinction

Endangered

400

The interaction of living and nonliving things in the same area

Ecosystem 

400

The organism that eats only meat is called

Carnivore

400

When two organisms try to use the same resource, like food or shelter, this could be a resulting action

Competition/Compete

400

Explain how removing all predators could affect an ecosystem

Prey populations would increase too much and resources could run out

400

A species at risk but not yet endangered

Threatened

500

The sum of all living things on Earth

Biosphere

500

The top of the chain 

Apex predator

500

Name at least three limiting factors

(Mr. Grimmer will accept these)

500

A species reproduces quickly, but its population stays stable because resources are limited. Explain why

The population reached carrying capacity due to limiting factors

500

In a meadow ecosystem, the rabbit population suddenly drops after a disease spreads through the rabbits. Predict two effects this change could have on other populations in the ecosystem, and explain why those changes would happen

(Mr. Grimmer will Accept this answer on the spot)