SC.D.2.4.1

The student identifies, explains, and describes their relationships between organisms and their habitat on both

local and global scales

Day 1

• The population that is at the carrying capacity for its environment is in

A.DeclineB.EquilibriumC.GrowthD.Collapse

Day 2

Air pollutants are airborne particles and gases found in concentrations high enough to endanger the health of organisms. These graphs show the primary pollutants and the sources that produce them. What is the largest source of primary pollutants?

A. TransportationB. Industrial processesC. Solid waste disposalD. Stationary source fuel

combustion

Day 3

When Australian sugar cane farmers were having a problem controlling an insect pest known as the can beetle, they imported a species of toad not native to the area in hopes that the toads have become pests. Suppose that a scientist suggests bringing in a new species of snake to eat the toads. Explain why this idea might not be a good solution

Day 3 Answer

• Although toads were brought to control pests, they have become pests themselves, a new species of snake might lower the toad population, but the snake population might grow quickly and create a problem, farmers would be trading one pest for another.

Day 4• Great horned owls feed on snakes and mice among other

mammals.A great horned owl population is threatened when a logging company decides to harvest its forest habitat. After many years of continuous deforestation, much of the owl population has fled in search of a new forest for nesting. Which of the following scenarios in the owl’s previous habitat is most likely?

A. Both the snake and mouse populations will increase.B. Both the snake and mouse populations will decrease.C. The mouse population will increase but the snake

population will decrease.D. The snake population will increase but the mouse

population will decrease.