8.11 ABC, 7.10B

What conclusion could you make based on the graph?

• Nitrogen is NOT a problem in the Gulf of Mexico

• Corn and soybeans are the only sources of Nitrogen pollution

• Most nitrogen pollution found in the Gulf comes from farming crops.

• Nitrogen that comes from the atmosphere is most harmful.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

When Charles Darwin visited the Galapagos Island in the 1800s, he observed many types of organisms that were similar but lived on different islands. The four species of mockingbirds found on the Gapapagos Island are shown below. Each species lives on a different island. These species are very similar, but the Hood mockingbird has a longer beak than the other three species. Which of the following best explains this difference?

• The hood mockingbird needs a longer beak for defense against predators.

• The Hood mockingbird originated from a different type of bird than the other species.

• The Hood mockingbird's longer beak is an adaptation to the food available in the bird's habitat.

• The Hood mockingbird's beak stretched to reach its food, and the longer beak was passed down to its offspring.

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Giant salvinia is an aquatic plant that floats on water and reproduces rapidly. When these plants die, decomposition by bacteria affects oxygen levels in the water. As more plants die, less oxygen is available in the water. Students observe a pond covered by giant salvinia.

Which statement is the best prediction the students can make about the immediate future of the pond?

• The depth of the water in the pond will increase.

• Fish populations in the pond will begin to decrease.

• The amount of bacteria in the pond will suddenly decrease.

• The number of different types of plants around the pond will increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The strangler fig is a vine that starts out as a seed in the tree canopy of the rain forest. It drops its roots down from the canopy to the forest floor.

By sprouting in the rain-forest canopy, the strangler fig seedling is exposed to more

• sunlight

• soil

• nutrients

• consumers

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Four students were asked to create a graph representing a typical predator–prey relationship. Which graph shows a situation in which the number of predators in a population depends on the number of prey?

• 
• 
• 
• 

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

The Prairies Region and the Cross Timbers are located in north-central Texas. The graph below shows information about eating habits of white-tailed deer in these regions.

A Cross Timbers rancher is concerned about competition between the ranch animals and the deer. Based on the graph, which ranch animals compete for the most food with white-tailed deer?

• Cattle that eat grass and feed

• Goats that eat weeds and shrubs

• Turkeys that eat seeds and fruit

• Hogs that eat fruit, seeds, and feed

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which organisms in the food web shown above compete for the same food source in this environment?

• Grasshoppers and snakes

• Hawks and frogs

• Frogs and snakes

• Decomposers and grasses

Tags

NGSS.MS-LS2-1

Review the graph showing marine fishing rates.If the fishing rate in Asia continues to grow, what will most likely happen as a result?

• The fish population will continue to rise.

• A wide range in ocean temperatures will be seen worldwide.

• The U.S. human population will decline.

• The overfishing will cause an imbalance in marine ecosystems.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

If annual rainfall increased and caused ponds in a habitat to become deeper, how, after many generations might the traits of water lilies change?

• Brighter flowers

• Longer Stems

• Wider leaves

• Thick roots

Tags

NGSS.MS-LS1-5

• A

• B

• C

• D

Tags

NGSS.MS-LS1-6