Identify the Levels of Organization from Cell to Organism and Describe How Specific Structures Enable the System to Func

Plants contain xylem and phloem tissue. What organ system in animals performs a similar function as the xylem and phloem of plants?

• digestive system

• excretory system

• respiratory system

• circulatory system

A plant leaf is an organ that traps light energy to make food. In what way is an animal stomach similar to a plant leaf?

• both organs make food

• both organs are made up of only one kind of cell

• both organs are made up of several kinds of tissues

• both organs take in oxygen and release carbon dioxide

Cells of a multicellular organism are specialized. What does this mean?

• Cells of a multicellular organism are adapted for performing a specific function.

• Cells of a multicellular organism can survive independently of the other cells.

• Cells of a multicellular organism are specialized because they have a complex structure.

• Each cell of a multicellular organism can perform all the life functions the organism needs to survive.

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Jana is studying the structure and function of different parts of a flowering plant. She drew and labeled the plant shown in the illustration. Which statement is a function of the roots?

• They are about 15 cm long.

• They are connected to the stem.

• They have tiny root hairs on them.

• They take in nutrients from the soil.

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This picture shows a microscopic view of blood. Blood is made of different types of cells that work together. Which of the following levels of organization best classifies blood?

• cell

• tissue

• organ

• organ system

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Which is a type of tissue that both plants and animals have?

• nerve

• ground

• protective

• connective

This diagram shows the two main parts of the human body's central nervous system. According to the diagram, which term best describes the brain?

• cell

• organ

• organ system

• tissue

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Which statement best explains the relationship between structure and function in an organism?

• Structure and function refers to the different tissue types within an organism.

• Structure and function refers to the jobs of tissues, organs, and organ systems.

• Structure and function refers the relationships between the locations of tissues, organs, and organ systems.

• Structure and function refers to the relationship between the parts of cells, tissues, organs, and organ systems and the job they do in the body.

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Which term describes the adaptation of cells, organs, or organ systems for a specific function?

• structure

• specialization

• multicellular organism

• level of cellular organization

The illustration below shows an example of the levels of structural organization in living things. Which of the following choices best completes the diagram?

• blood

• intestines

• a human body

• the circulatory system

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