Animal/plant functions and structures

Marvin predicts that if marigold flowers are planted around a group of tomato plants, then fewer insects will eat the tomatoes. Which of the following observations would best support Marvin's prediction?

• A count of 20 insects before marigolds are planted and 20 insects after marigolds are planted.

• A count of 20 insects before marigolds are planted and 12 insects after marigolds are planted.

• A count of 10 tomato plants before marigolds are planted and 5 tomato plants after marigolds are planted.

• A count of 10 tomato plants before marigolds are planted and 15 tomato plants after marigolds are planted.

Tags

NGSS.MS-LS2-4

Which of the following conclusions is valid based on the graph?

• Captured moths prefer yellow light.

• Only white moths are attracted to white light.

• The number of moths captured per day using white light decreased each day.

• The number of moths captured per day using yellow light decreased after day 5.

Tags

NGSS.MS-LS2-1

Students are investigating the effect of the number of hours per day of sunlight on plant growth. What conclusion can be made about this investigation?

• Plants do not need sunlight to grow.

• Plants grow more with fewer hours of sunlight.

• Plants receiving more hours of sunlight grow more.

• Plants receiving over seven hours of sunlight will not grow.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS1-5

NGSS.MS-LS1-6

Arctic foxes grow new fur with different seasons. They grow brown fur in the summer and white fur in the winter. These changes are examples of which survival characteristic?

• adaptation

• hibernation

• metamorphosis

• migration

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4

Beetles in a certain population can either be green-colored or brown-colored. A change in the environment has caused the green-colored beetles to become more visible and heavily preyed upon by other animals. What will most likely happen to this beetle population?

• The number of brown-colored beetles will increase.

• The green-colored beetles will reproduce at a faster rate.

• The green-colored beetles will change their color to brown.

• The population of green-colored and brown-colored beetles will become extinct.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

The life cycle of a mosquito is based on temperature and daylight. With increased global temperatures, one species of mosquito is beginning to reproduce earlier in the year for a longer period of time. Which phrase below best describes this change in the life cycle of the mosquito?

• a species losing habitat

• a species overpopulating

• a species adapting to changes in an environment

• a species gaining a competitive advantage over predators

Tags

NGSS.MS-LS2-4

NGSS.MS-LS1-5

NGSS.MS-LS4-4

Many plants that are found in a tropical rainforest have very large leaves. How would large leaves be most helpful for rainforest plants?

• by attracting insects for pollination

• by hiding the stems from predators

• by collecting sunlight for making food

• by shading the stems and roots from heat

Tags

NGSS.MS-LS1-6

Scientists studied a population of harvest mice living in a small area. Some mice have dark-colored fur and some mice have light-colored fur. The graph below shows how the number of mice with each type of fur color changed over five years. Which of the following would best explain the data in the graph?

• An environmental change killed most of the plants that the mice eat.

• An environmental change allowed an invasive species to be introduced.

• An environmental change reduced the amount of water available to the mice.

• An environmental change caused one fur color to be more visible to predators than the other.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The apple snail is an unusual organism because it has both gills and a lung. How might a combined respiratory system like this give apple snails an advantage over other snails without this characteristic?

• The apple snail could move more rapidly.

• The apple snail could lay eggs with thicker shells.

• The apple snail could be more immune to disease.

• The apple snail could expand its range to find food.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Manatees are mammals that live in warm, shallow waters. They can easily become sick and die when temperatures drop. Which behavior is most important to the survival of a manatee in changing water temperatures?

• Breathing at a slower rate

• Swimming to deeper waters

• Feeding more to increase body fat

• Migrating to natural springs of warm water