What is the difference between immigration and emigration?
Identify the autotroph and heterotrophs in the food chain. 
Autotroph = grass
Heterotroph = grasshopper, bluebird, snake, owl, and mushrooms
What is a symbiotic relationship?
It is a relationship between two organisms that interact closely, usually at least one benefits.
What is a pioneer species?
The first species in primary succession such as mosses or lichens
Give an example of a biotic and abiotic factor.
Biotic (living): grass, tree, frog, spider
Abiotic (non-living): rock, sand, wind, temperature
What is the difference between an autotroph and a heterotroph?
An autotroph can create its own food/energy (ex: plants) and a heterotroph cannot create its own energy and will eat other organisms to obtain energy (ex: humans, dogs, lizards)
Identify the primary consumers in the food web.
Rabbits, mice, grasshoppers, birds
What are the three types of symbiotic relationships?
Mutualism, commensalism, and parasitism
What are the steps in primary succession.
Pioneer species inhabit an area and break down rocks to form soil, small plants grow, shrubs and bushes, softwood trees, hardwood trees, and hundreds of years later you have a climax community.
Give an example of a population.
Examples: A gaggle of geese, a murder of crows, a school of fish, a business of ferrets, a nest of snakes, a fever of stingrays
What is a limiting factor and what are three examples?
A limiting factor is a biotic or abiotic factor that decreases population growth. Examples include; food, water, shelter/space, competition, predation, disease.
At which level is 100% of the energy located? Also, how much energy is transferred from B to C?
100% of the energy is located in A
10% of energy is transferred from B to C
A symbiotic relationship in which one organism benefits and the other is harmed. Ex: tick and dog, tapeworm and human
What are the steps in secondary succession.
Soil already present so small plants grow, then bushes and shrubs, softwood trees, hardwood trees, and hundreds of years later you get a climax community.
What is the difference between primary and secondary succession?
In primary succession you need a pioneer species because you have no soil, in secondary succession you do not need a pioneer species because there is already soil.
List the following terms in order from greatest number of organisms to least. Then give an example for each.
Biosphere, organisms, community, population, biome, ecosystem.
Example Answer:
Biosphere (The Earth), Biome (Desert), Ecosystem (Sahara Desert), Community (A group of cactus and lizards that live in the same area), Population (A group of Bearded Dragon), Individual (A Bearded Dragon)
Identify all possible secondary consumers from the food web.

Snake, Owl, Wildcat, Fox, and Lion
Define and give an example for mutualism.
A symbiotic relationship in which both organisms benefit. Ex: clownfish and sea anemone, bees and flowers
Name a natural disasters that causes primary succession.
How can competition be reduced in an ecosystem?
Animals could emigrate to another area, more food could be introduced, animals could develop different niches so they don't overlap, etc.
What is ecological succession?
It is the process that describes how a biological community changes over time.
In a food pyramid why are there fewer top predators than producers?
Define and give an example for commensalism.
Name two natural disasters that can cause secondary succession.
Fire, Flood, Tornado, Windstorm
Draw a food chain using the following animals and label whether each one is the producer, primary consumer, secondary consumer, tertiary consumer, and decomposer.
insect, hawk, fungi, small bird, grass
Grass (producer) -> Insect (Primary Consumer) -> Small Bird (Secondary Consumer) -> Hawk (Tertiary Consumer) -> Fungi (Decomposer)