7th grade Semester Exam 2

What is the correct order for the levels of Organization from simplest (smallest) to most complex(largest)?

• Cell, Tissue, Organ, Organ system, Organism

• Organism, Organ System, Organ, Tissue, Cell

• Tissue, Cell, Organ, Organ System, Organism

• Organism, Cell, Organ System, Organ, Tissue

Answer explanation

Tissues are made of multiple cells, Organs are made of multiple tissues, Organ systems are made of multiple organs, and Organisms are made of multiple Organ Systems.

The smallest unit of life is called the:

Tags

NGSS.MS-LS1-1

DNA is contained in which organelle within a cell?

• Mitochondria

• Cell Wall

• Nucleus

• Cytoplasm

Tags

NGSS.MS-LS1-2

The plant in the picture is demonstrating which type of tropism?

• Geotropism

• Hydrotropism

• Thigmotropism

• Phototropism

The physical or chemical breakdown of rock is known as:

• Weathering

• Erosion

• Deposition

Tags

NGSS.MS-ESS2-2

Which Ecoregion would be most affected by a hurricane?

• 1. Piney Woods

• 2. Gulf Coast

• 8. Rolling Plains

• 9. The High Plains

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

NGSS.MS-ESS3-2

Which of the following is NOT a characteristic of our solar system that allows for life on Earth?

• The availability of liquid water

• The composition of our atmosphere

• Our proximity to the sun

• The molten magma core found inside

Tags

NGSS.MS-ESS2-4

The movement of loose sediment is known as:

• Weathering

• Erosion

• Deposition

The heart is the main structure in which organ system?

• Digestive

• Circulatory

• Respiratory

• Skeletal

Tags

NGSS.MS-LS1-3

What is the function of the Respiratory System?

• Chemical and mechanical breakdown of food

• Allows for movement of the body

• Provides structure and protects vital organs

• Gas exchange