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Atoms combine to form molecules. Which of the following is another example or organization among living things?

• tissues combine to form cells

• cells combine to form tissues

• organs combine to form cells

• organs combine to form tissues

Organisms can be organized from their smallest functional unit to larger functional units. In humans, smooth muscle is an example of which of the following levels of organization?

• cells

• tissues

• organs

• organ systems

The body of a person or other mammal is a complex organism. The structure of the body has several levels of organization. Which of the following lists the structural levels of the body from smallest to largest?

• cell, tissue, organ, organ system, organism

• cell, organ, organ system, tissue, organism

• organ, organ system, cell, tissue, organism

• organ, organ system, tissue, cell, organism

Tags

NGSS.MS-LS1-3

Human beings are composed of progressively larger units of organization. Which unit of organization includes all the others?

• cells

• systems

• organs

• tissues

Tags

NGSS.MS-LS1-3

Organs are directly made up of what lower level of cellular organization?

• cells

• organisms

• tissues

• organ systems

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-3

Which is part of the cell theory?

• all organisms are composed of cells

• all organisms are composed of a single cell

• all organisms are composed of more than one cell

• all organisms come from pre-existing divided cells

Tags

NGSS.MS-LS1-1

Scientists observed a bacterium divide to form two smaller bacteria. This observation provides support for an important biological theory. Which of the following theories does this observation best support?

• evolutional theory

• atomic theory

• germ theory

• cell theory

Tags

NGSS.MS-LS1-1

Which of the following is made of cells?

• air

• compounds

• diamonds

• firewood

Tags

NGSS.MS-LS1-1

According to the cell theory, where do plant cells come from?

• organelles

• other plant cells

• proteins

• chemical reactions

Norman grew skin in a lab by adding skin cells to a synthetic material. The skin functioned normally for 12 days. Then he separated some of the skin cells into membranes, cytoplasm, and vacuoles to study them. which of the following were alive during Norman's experiment?

• the skin and the cytoplasm

• the skin and the skin cells

• the cell membranes and the skin cells

• the cell membranes and the cytoplasm

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2