Unit 1: What Animal Structures

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.MS-LS2-1

NGSS.MS-LS2-3

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.

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

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.

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

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.

What do the lungs of an animal do?

• take in air

• create energy

• help with digestion

• moves food throughout the body

Animals that eat meat usually have ______ teeth.

• large and flat

• small and sharp

• short and flat

• long and sharp

Blood carries ______ through the body.

• waste

• oxygen

• digested food

• all of the above