Which of the following determines the type of biome classification that will be made for a particular region?
Climate
Size
Mineral deposits
Number of human settlements
Think about how the amount of energy changes as you move stepwise from producers to primary consumers to tertiary consumers in a food chain. Which shape could you use to model the quantities of energy at all of these types?
Circle
Square
Triangle
Line
Roseate spoonbills are wadding birds that live in the Everglades of Florida. These birds eat a diet of shrimp, fish, amphibians, and aquatic plants. Which of the following sets of words could be used to classify this species?
Autotroph, omnivore, predator
Heterotroph, herbivore, carnivore
Carnivore, autotroph, prey
Omnivore, predator, heterotroph
Plants need bacteria in order to take up and use which element?
Carbon
Oxygen
Nitrogen
Hydrogen
Which of the following is true of carbon?
Carbon is present in all organisms and in the atmosphere
Carbon moves from consumer to producer
Carbon must be fixed by bacteria before other organisms can use it
Carbon can only be released from dead organisms by decomposers
An ecosystem contains then following food chain:
Phytoplankton shrimp copepods sunfish shark
Which of the following describes a likely Change in this ecosystem if the shrimp population was depleted by fishing?
The copepod population would increase
The shark population would decrease
The sunfish population would increase
The phytoplankton population would decrease
A study indicates that fertilizers from nearby farm feilds have entered a lake. Which of the following describes a likely Change in this ecosystem in the future?
Algae populations will increase, and trout populations will decrease
Algae populations will decrease, and trout populations will increase
Both algae and trout populations will decrease
Both algae and trout populations will increase
2 answers
58 answers