Show:
Vocabulary
Populations
Food Webs
Energy Roles
Factors and Cycles
100
What is the place where an organism lives & provides the things it needs called?
Habitat
100
If a black bear's birth rate is greater than it's death rate, the black bear's population would increase or decrease?
Increase
100
Describe the difference between a food chain and a food web.
Food chain- one straight line Food web- many overlapping lines/food chains
100
An organism that can make it's own food is called a...
Producer
100
All the living parts of an ecosystem are called __________ factors.
Biotic
200

Ecologists use this term to describe an individual (plants or animal) in an ecosystem…

Organism

200

All the members of one kind of species living in a particular area at the same time is referred to as a .....

population

200
A first-level consumer feeds directly on...
Producers
200
Consumers get energy from other organisms. There are 3 types of Consumers: Herbivores, Carnivores, & Omnivores. Describe each type & what they eat.
Herbivore- eats only plants Carnivore- eats only meat Omnivore- eats both plants & animals
200

A part of an ecosystem that is not alive, and was never alive

Abiotic Factor
300

What is a group of populations that are interacting with each other called?

Community

300
To calculate the population density of an area you divide the number of organisms by the ....
Unit Area
300
The first organism on any food chain or food web is always a...
Producer
300

In what direction do arrows point in a food chain/food web

The direction of energy flow

300

The process where bacteria convert nitrogen into something usable by plants

Nitrogen Fixation

400

The amount of organisms a specific habitat can successfully support

Carrying capacity 

400
If you counted 15 ants in an area measuring 3 square meters, the population density of the ants is...
5 ants per square meter
400

Study this food chain: plants provide energy for a grasshopper - grasshopper provides energy for a snake - snake provides energy for a fox. Which consumer is a second level consumer?

Snake

400

Organisms that Break down waste & dead organisms and returns raw nutrients to the soil

Decomposers

400

Name 3 ways carbon enters the atmosphere. 

Respiration, combustion, Decomposition (etc.)

500

An organism's job in an ecosystem is called its ...

Niche

500

Which is an example of a population & WHY?
a) rabbits & foxes in a forest
b) birds & worms in your backyard
c) carrots & beans in your garden
d) panda bears in a province in China
e) humans and dogs living on prospect ave
f) Bergenfield high school, and everything in it

D

500

Given this food chain, how much energy would the tertiary level consumer have, if the producer has 2500 kc of energy. 

Grass -> Squirrel -> Fox -> Coyote

2.5 kc of energy

500

A nearby ecosystem consists of: insects, moss, frogs, butterflies, flowers, mushrooms, and rabbits. Classify each organism into 3 categories: producers, consumers, & decomposers.

Producers: moss, flowers Consumers: insects, frogs, butterflies, rabbits Decomposers: mushrooms

500

Explain the difference between a density dependent factor and a density independent factor.  

Density Dependent - Factor that is influence by the density of a population  (competition, lack of food, disease)

Density Independent - Factors that are not influenced by the density of a population (hurricane, drought, flood)