Levels of Organisation in Multicellular Organisms Flashcards

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Note: We may include questions that have multiple correct answers. It’s useful to remember specific examples to understand these concepts better.

What are the levels of organisation in multicellular organisms from least complex to most complex?

Cells, tissues, organs, organ systems, organism.

What is a tissue and give an example?

A tissue is a group of cells with similar structures working together to perform a particular function.

An example is muscle tissue.

What makes up an organ and give an example?

An organ is made up of groups of tissues that work together to perform specific functions.

An example is the heart.

What is an organ system and give an example?

An organ system is a group of organs with related functions working together to perform bodily functions.

An example is the circulatory system.

How are plant tissues organised into an organism?

Plant tissues form organs like leaves, roots and stems, which then form organ systems, and collectively, these organ systems make up the whole plant organism.

What is the basic structural and functional unit of a living organism?

The cell.

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