The tissues of multicellular, complex animals are categorized into four primary types: epithelial, connective, muscle, and nervous.

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SUPPORTED

the evidence backs this

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3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that the tissues of multicellular, complex animals are categorized into four primary types: epithelial, connective, muscle, and nervous?

Yes. Biological reference materials consistently confirm that the tissues of complex multicellular animals are categorized into four primary types: epithelial, connective, muscle, and nervous.

Verdict: SUPPORTED · 3 sources for, 0 against · Last checked 3 Oct 2026

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Evidence for · 3

PLOS (all journals): The Bi-Functional Organization of Human Basement Membranes

References epithelial and connective tissues in complex multicellular organisms.

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PLOS (all journals): The Bi-Functional Organization of Human Basement Membranes. (n.d.). PLOS (all journals). https://doi.org/10.1371/journal.pone.0067660

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More for · 2

LibreTexts: LibreTexts: 41: The Animal Body and Principles of Regulation

Explicitly states that the tissues of multicellular, complex animals are epithelial, connective, muscle, and nervous.

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LibreTexts: LibreTexts: 41%3A The Animal Body and Principles of Regulation. (n.d.). LibreTexts. https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Map%3A_Raven_Biology_12th_Edition/41%3A_The_Animal_Body_and_Principles_of_Regulation

OpenStax: OpenStax Concepts of Biology: 15.1 Features of the Animal Kingdom

States that there are four main types of animal tissues: nervous, muscle, connective, and epithelial.

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OpenStax: OpenStax Concepts of Biology: 15.1 Features of the Animal Kingdom. (n.d.). OpenStax. https://openstax.org/books/concepts-biology/pages/ca189282-29f0-459b-840f-c8853c66ede0@

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