What Animal Structures Are Used for Digestion and Circulation?

Which three things do all animals need to survive?

• food, water, and light

• water, air, and light

• water, air, and food

• food, air, and light

Tags

NGSS.K-ESS3-1

NGSS.K-LS1-1

For each insect, its mouthpart is a structure designed for

• Preying on other insects

• Defending itself against animals

• Chewing holes in wood

• Eating a certain kind of food

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NGSS.MS-LS4-4

The digestive system is responsible for

• pumping blood throughout the body.

• breaking down food into smaller pieces.

• exchanging gasses in the lungs.

• transporting nutrients through the bloodstream.

Food starts to break down in the __________.

• Stomach

• Small intestine

• Large intestine

• Mouth

Caitlin is visiting an aquarium and observes this fish. She claims that the fish can breathe even though it is underwater. Which evidence supports her claim?

• Fish have mouths that take in air

• Fish have gills that take in oxygen.

• Fish can breathe during digestion.

• Fish can breathe using their hearts.

Ari is on a nature walk and sees this insect. How does the insect MOST LIKELY use its mouth to eat? Use evidence from the picture to make your claim.

• It cracks hard nuts

• It sucks liquid nectar

• It pokes holes in skin

• It cuts and tears leaves

Look at the diagram. It shows the digestive system of a mouse. Which statement BEST describes how two of the structures in the digestive system work together?

• The esophagus moves broken down food into the stomach.

• The mouth swallows to move food into the small intestine.

• The large intestine moves digested food into the small intestine

• The stomach moves food into the mouth where it is broken down.

Tags

NGSS.MS-LS1-3

Sayid claims that the digestive system and the circulatory system do not work together in the human body. Valerie argues that even though they are different systems, they do work together. Which is evidence that supports Valerie’s argument?

• In the digestive system, food passes through the stomach and into blood. Blood gets pumped through the body by the arteries in the circulatory system.

• In the digestive system, food passes through the blood and into circulatory system. Food gets pumped through the body by the oxygen in the circulatory system.

• In the digestive system, food passes through the walls of the small intestine and into blood. Blood gets pumped through the body by the heart in the circulatory system.

• In the digestive system, food passes through the walls of the heart and into blood. Blood gets pumped through the body by the arteries and veins in the circulatory system.

Tags

NGSS.MS-LS1-3

The diagram shows blood being carried to the heart, and blood being carried away from the heart. What structures of the circulatory system are modeled by the arrows X and Y?

• X and Y are both veins

• X and Y are both arteries

• X are veins and Y are arteries

• Y are veins and X are arteries