Life

When Dakota sees his newborn cousin for the first time, he is surprised to see that his cousin's skin and eyes have a yellowish color. Dakota's aunt tells him that this happens when the organ that filters a person's blood does not work properly. Which organ is MOST likely causing Dakota's cousin to look yellowish?

• Heart

• Liver

• Lungs

• Pancreas

A variety of animals make the Florida Everglades their home. Many of them must compete for the same food sources. The graph depicts the population changes among species of frogs in the Everglades. Over the course of a year, which frog species will have the greatest decrease in population because of increased competition for food?

• Green Tree Frog

• Cuban Tree Frog

• Squirrel Tree Frog

• Florida Cricket Frog

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which structure in a plant has a function similar to the function of a skeleton in a mammal?

• Exoskeleton

• Flower

• Leaf

• Stem

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 explain the data in the graph?

• An environmental change killed off 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-LS2-4

NGSS.MS-LS4-4

Which plant structure is MOST similar in function to a lizard's eggs?

• Flowers

• Pollen

• Seeds

• Stem

Human organs and organ systems each have specific functions, or jobs. For example, the function of the stomach is to digest food. Which pairing matches an organ with its main function?

• Muscles: Structure

• Jaw bone: Balance

• Lung: Getting rid of oxygen

• Intestines: Transporting nutrients and wastes

In the rainforest, plants that live on the forest floor have different adaptations from plants that live high up in the canopy. What is the MAIN reason that the leaves of plants on the forest floor are much wider than those found in other areas of the forest?

• These plants produce poisons that plants in other areas do not.

• These plants need to take in more water than plants in other areas do.

• These plants have less access to light than plants in other areas have.

• These plants have more natural predators than plants in other areas have.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Amphibians are able to exchange oxygen and carbon dioxide through their smooth, moist skin. Which of these organs has the same purpose?

• Heart

• Liver

• Lungs

• Stomach

The food chains always starts from ..........

• Decomposers

• Producers

• Grass hopper

• None of these

Tags

NGSS.MS-LS1-6

Sequence that represents the series of eating and being eaten is called

• Food series

• Food web

• Food hub

• Food chain

Tags

NGSS.MS-LS2-3