Topic 3 - Human Body Systems & Levels of Organization ('21-'22)

Different types of tissues working together to perform similar functions could make up all of the following, except:

• blood

• heart

• arteries

• veins

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Teeth begin to break down food by mechanical digestion. Which statement best describes this physical change?

• Mechanical digestion changes the chemical composition of food.

• Mechanical digestion causes a color change in the food particles.

• Mechanical digestion produces gas from the food.

• Mechanical digestion breaks food into smaller pieces.

If you place a drop of blood on a microscope slide and examine it with a powerful microscope, you will see many red shapes that look something like circular disks.

These are red blood cells, which carry the oxygen you need throughout your body.

Are red blood cells the only cells in your body?

• Yes, the many types of blood cells make up your body.

• Yes, the human body is made entirely of red blood cells.

• No, blood cells and bone cells are both required.

• No, the human body is made of many types of tiny cells.

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NGSS.MS-LS1-1

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Which box depicts the simplest level of organization?

• P

• Q

• R

• S

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NGSS.MS-LS1-1

Which box depicts the tissue level of organization?

• P

• Q

• R

• S

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NGSS.MS-LS1-3

What statement about the chart is true?

• P is at the highest level of organization.B)C)D)

• Q is at the lowest level of organization.

• R is at the highest level of organization.

• S is at the lowest level of organization.

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NGSS.MS-LS1-1

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Which box in the chart shows an organ system?

• P

• Q

• R

• S

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NGSS.MS-LS1-3

The human body is composed of several organ systems. One organ, the brain, controls the functioning of all other organs and organ systems. This organ is part of the ___________ system.

• respiratory

• circulatory

• nervous

• muscular

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NGSS.MS-LS1-3

The human body is composed of cells, organs, organ systems, and tissues. How are these organized?

• Groups of cells form tissues.

• Groups of tissues form organ systems.

• Groups of organs form tissues.

• Groups of organ systems form tissues.

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NGSS.MS-LS1-1

NGSS.MS-LS1-3

The human heart is an organ that is made up of cells. Not all of the cells that make up the heart are identical, however. What name is given to a group of similar cells that perform a special function and together make up an organ?

• embryo

• tissue

• organelle

• system

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NGSS.MS-LS1-1

NGSS.MS-LS1-3