Energy
Levels of organization
Food Chains
Food Webs
Review***
100
Autotroph is another term for ___________, which are organisms that receive their energy from the Sun.
What is a producer
100
A single mosquito larva like the one in the picture represents which level of organization?
What is an organism
100
A food chain passes ________ from one living thing to another.
What is energy
100
Food webs are composed of multiple ______ _________ showing the flow of energy.
What is food chains
100
make a food chain with the following organisms: -mouse -snake -seeds -hawk
What is seeds - mouse - snake - hawk
200
Organisms that must feed to get their energy are called what?
What is consumers
200
Which level of organization is best represented by the picture below?
What is a population
200
A food chain ALWAYS begins with__________
What is a producer
200
All the biotic and abiotic factors interacting together make up a(an) ________________.
What is an ecosystem
200
If a population of producers(autotrophs) decrease dramatically because of a drought, which of these organisms would be the MOST DIRECTLY affected in a negative way?
(rabbits, coyotes, deer, owls, snakes)- there are more than one answer
What is rabbits and deer
300
If 100% of the Sun's energy is found in the producers, AND a little ENERGY is LOST as food is transferred from trophic level to trophic level, Which of the following organisms receives the LEAST amount of energy from the food chain?
acorns-->squirrels-->rattlesnake-->King snake
What is king snake
300
In an ecosystem a single organism has a ___________, which is what that organism DOES in its ecosystem.
What is a niche
300
1. Breaking down dead and decaying matter is the __________ of decomposers(habitat or niche)
**primary means "first"
2. Which of the organisms in the food chain is the secondary consumer?
1. What is niche
2. What is minnow
300
Organisms of the same species within a food web is called ________________
What is populations
300
1. What are all the living things in a certain area?
2. Cicada population Initial 233 Final population 355
What is the percent change?
1. What is a community?
2. What is 52.4% increased
400
100 percent of the Sun's energy is found in which organisms of a food web?
What is Producers(plants)
400
In a food web/food chain, energy is LOST as it travels up the trophic levels. Which of the following organims would contain the LEAST amount of energy from what it eats?(bat, cobra, cactus, or coyote)?
What is a coyote
400
A consumer may be a ___________, a __________, or a ___________
What is an omnivore, an herbivore, or a carnivore
400
1. How many trophic levels are in this food chain?
algae-->zooplankton-->small fish-->barracuda-->Tiger shark
2. Based on the above food chain, which organism is the primary consumer?("primary" means first, "consumer" means one who eats)
1. What is 5 trophic levels?
2. What is zooplankton
400
Which organisms use sunlight for energy?(more than one answer)
(grass, grasshopper, beetle, owl, pine tree, lily pad)
What is grass, pine tree, and lily pad
500
Organisms that receive their energy from breaking down dead and decaying matter are called _________
What is decomposers
500
Which of the following would NOT be considered part of a community?
herd of deer
Cacti
Sand
Shrub bush
centipede
What is sand
500
How many trophic(feeding levels) are there in this food chain?
grass seeds-->deer mouse-->garden snake-->king snake-->hawk-->Coyote
What is 6 trophic levels
500
Starting with the grass food chain, the blue jay is the 3rd OR 4th trophic level?(trophic means "feeding")
What is 3rd trophic level?
500
1. What do all of these living things have in common? deer, rabbit, squirrel
2. Nilgai(Blue Bull) 
Initial population 340
Death from hunters 55
Death from natural predators 25
Offspring 40
Final population______? Percent change_______?
1. What is herbivores
2. What is Final population 300
What is -11.8% decreased