Second Semester Science Review

Which of the leaves is considered to be a compound leaf?

• A,B

• C, D, E

• A

• B

Use the dichotomous key to identify the picture that best represents the Camarhynchus. Type the letter of the correct bird that best represents a Camarhynchus.

Tags

NGSS.MS-LS4-2

A group of 7th grade science students have been asked to create a dichotomous key that can be used to identify the plants shown in the diagram. Which of the following specifications should not be used when making this dichotomous key?

• Leaves symmetrical on a stem -- Leaves asymmetrical on a stem.

• Leaves found in a deciduous forest --Leaves found in a tropical forest.

• Leaves bunched on a stem -- Single leaf on a stem.

• Circular shaped leaves -- Irregular shaped leaves.

The picture shows xylem vessels, which are tube like structures in a plant's stem. Using the image, how have xylem vessels allowed plants to adapt to living on land?

• They allow plants to transport water far above the ground to other plants structures.

• They allow land plants to store water for a long period of time.

• They allow plants to make food internally without needing sunlight.

• They allow land plants so sense herbivores they can release toxins through the vessels.

Tags

NGSS.MS-LS2-3

The picture shows a bone with many air pockets like a bird bone. How do these pockets of air allow birds to fly in the air?

• They keep the bird very light.

• They allow wind to flow through their bones.

• They allow the birds to absorb more oxygen.

• They produce helium for lift.

The picture shows the internal muscles of an earthworm. Earthworms have circular muscles and longitudinal muscles. How might the muscle adaptation help the earthworms to live in the soil.

• The muscles support the bones in the earthworm.

• These muscles help the earthworm pull and move through the soil.

• These muscles help the earthworm break down food.

• These muscles help the earthworm lift up to fight predators.

Many people prefer dog breeds that have specific traits. Recently there has been a surge in business of breeding dogs in order to produce a dog that does not shed. This would be an example of

• Natural breeding

• Selective breeding

• Random breeding

• Trait breeding

Tags

NGSS.MS-LS4-4

The image shows veins in the leg that open and close. How could the adaptation of valves in the leg help allow a human to better survive in its environment?

• Valves prevent blood from running backward, away from the direction of the heart.

• Valves stir the blood and remove toxins.

• Valves allow blood to pool and stay stored.

• Valves take carbon dioxide out of blood, so the blood returns to the heart, clean.

Tags

NGSS.MS-LS1-3

Students are visitant a zoo. They see a poison dart frog about 2 cm long. The poison dart frog secretes a poisonous chemical from its skin. It lives around green tropical plants. What is the advantage of the frog having a bright red color in a green environment?

• It helps it to hide among the leaves.

• It helps it to sneak up on small insects.

• It serves as a warning to hungry predators.

• It prevents overheating in a tropical environment.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

An acorn is a seed. Its shape is very different from the shape of a dandelion seed. Which TWO statements describe advantages of the shape of the acorn?

• The acorn is more likely to stick to animal fur.

• The acorn is likely to attract hungry animals.

• The acorn can be blown to a better growing location.

• The acorn stores more materials to help it start growing.