Biology Biological Level of Organization

The basic unit of structure and function for the body.

• cell

• organelle

• atom

• molecule

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Cells are.....

• a group of tissues that together carry out a specific function

• structural and functional units of all living things.

• groups of organs that together carry out a specific function

• are only found in animals.

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What is a multicellular organism?

• an organism with one cell

• an organism with 2 or more cells

• bacteria

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The human body is composed of organ systems. Which list represents a systems from the least to most complex?

• Heart --> cardiac muscle --> muscle tissue --> muscle cell

• Muscle cell --> muscle tissue --> biceps muscle --> muscular system

• Lung tissue --> trachea --> nostrils --> circulatory system

• Integumentary system --> skin cell --> hair --> sweat glands

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Which of the following best describes a tissue?

• a group of cells working together to perform a specific function

• a group of organs that work together to perform a specific function

• the smallest functioning unit of a living organism

• a specialized unit within a cell that has a specific function

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What is the difference between a cell and a tissue?

• cell is basic unit of life; tissue is group of cells that work as one

• cell is basic unit of life; tissue is groups of different cells

• cell is group of tissues; tissue is basic unit of life

• cell is group of organs; tissue is group of different cells

Atom → molecule → organelle → cell→ tissue → organ

→ system → organism→ population → community→ ecosystem → biosphere.

• Taxonomic System

• Classification system

• Levels of Organization

• Periodic Table

An organism such as a worm, may only have 100 cells. It should be classified as being

• a virus

• a bacteria

• unicellular

• multicellular

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Why are cells complex?

• All cells are the same

• Multicellular organisms can live with one type of cell

• Different cells perform different functions

• Complex cells are unicellula

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Cells are.....

• a group of tissues that together carry out a specific function

• structural and functional units of all living things.

• groups of organs that together carry out a specific function

• are only found in animals.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2