Definitions
Definitions Cont.
Test Questions
Test Questions Cont.
Biomes
100
A community of living and nonliving things working together in a specific area.
Ecosystem
100
A model that shows the path of energy as it flows from one living thing to the next. These start with a producer
Food Chain
100
A food chain is shown below.
sun → grass → grasshopper → scorpion → kit fox → bacteria
Which organisms are consumers?
Grasshopper, Scorpion, Kit Fox
100
Why are animals like deer, raccoons, bears, and coyotes sometimes seen in neighborhoods?
because their habitats are decreasing
100
How are salt marshes and lakes different?
Salt marshes are connected to the ocean and lakes are inland.
200
The living things in an ecosystem
Biotic
200
Animals that are killed and eaten by other animals
Prey
200
A biologist observed a zebra, a gazelle, a giraffe and a prairie dog on an African grassland. Which term best describes the animals the biologist saw in the terrestrial ecosystem?
Consumers
200
The diagram below is a simple grassland food chain.
grass 
mouse 
snake
If a predator of the snake were introduced to the ecosystem, which would most likely happen?
The mouse population would increase.
200
Which area is most likely closest to a salt marsh or an estuary?
Coastline
300
Any living thing that makes or produces its own food
Producer
What is the process where producers use energy from the sun to make their own food?
300
An animal that kills and eats other animals
Predator
What are apex predators?
300
A rabbit depends on various plants in an ecosystem to survive. Which would most likely happen if a drought decreased the plant population?
The rabbit population would decrease
300
Which is an example of a terrestrial organism relying on an aquatic organism for food?
Eagles consume fish to survive.
300
Which is a main difference between a grassland and forest ecosystem?
the amount of trees, as forests have more
400
Consumers are animals that must eat other living things to survive. List and describe the three types of consumers.
Herbivore- A consumer that only eats plants
Carnivore- A consumer that only eats meat
Omnivore- A consumer that eats both plants and animals
400
The interconnected feeding relationship within an ecosystem
Food Web
400
The diagram below is an aquatic food chain.
Which will most likely occur if there is overfishing and a loss of clams?
The amount of algae would increase and the number of bass would decrease.
400
Which ecosystem would most likely be home to crabs and oysters?
Estuary
400
In which ecosystem can you find a mix of salt water and freshwater?
Estuaries
500
A living thing that breaks down dead organisms and returns the nutrients back into the soil. Use waste materials to fuel their life processes.
Decomposers
500
List and describe the two types of ecosystems found on Earth. Give at least one example of each!
Aquatic- water-based ecosystem; saltwater and freshwater
Examples: Saltwater: Ocean, Salt Marsh, Estuary. Freshwater: Lakes, Ponds, Streams, Rivers, Creeks
Terrestrial- land-based ecosystem
Examples: Temperate/Deciduous Forest, Tropical Rainforest, Taiga, Desert, Grassland, Tundra
500
This food chain shows organisms in a classroom aquarium.
Which would benefit if the snail living in the aquarium were removed?
Algae
500
How are terrestrial biomes grouped or characterized?
Temperature, precipitation, vegetation (plants), climate, animals, soil
500
What is the difference between the taiga and tundra biomes?
The tundra is the coldest biome that has VERY few species of plants/animals.
The taiga has trees like pines, spruces, and fires. The taiga has more precipitation than the tundra.