Multicellular Organisms

What does the prefix 'multi' mean in the term multicellular?

How do multicellular organisms differ from unicellular organisms?

What is the main function of specialization in multicellular organisms?

Which of the following is an example of a unicellular organism?

What is the role of red blood cells in multicellular organisms?

What is the largest category used in taxonomy to classify organisms based on cell type?

Which domain consists of unicellular prokaryotes?

What distinguishes multicellular autotrophs in kingdom Protista from those in kingdom Plantae?

Which kingdom includes non-motile multicellular heterotrophs that gain food through extracellular digestion?

What characteristic is shared by all animals and distinguishes them from plants?

Classification and Characteristics of Multicellular Organisms

Organisms are classified using taxonomy, with the largest category being domain, based on cell type
Three main domains: Eubacteria, Archaebacteria, Eukarya
Eubacteria and archaebacteria are unicellular prokaryotes, Eukarya are more complex and basis of multicellular organisms
Evolutionary relationships between domains determined through protein and ribosomal RNA patterns
After domains, organisms sorted into Kingdom, Phylum, Class, Order, Family, Genus, Species
Multicellular autotrophs belong to Plantae (contain chloroplasts for photosynthesis) and Protista (including kelp)
Multicellular autotrophs in kingdom Protista and Plantae differ in specialized cells, such as chloroplasts
Multicellular heterotrophs are in Animalia (motile, must eat for energy) and Fungi (non-motile, gain food through extracellular digestion)
Multicellular organisms have specialized cells, communication systems, transport systems, eukaryotic cells, and increase in size with cell number
All plants are multicellular autotrophs, immotile, with specialized tissues and organs for communication and transportation
All animals are multicellular, motile, and heterotrophic, requiring food for energy
Examples of multicellular organisms include trees, grass, animals like fish and cheetahs, and fungi like mushrooms

Test your knowledge of the classification and characteristics of multicellular organisms in this quiz. Explore taxonomy, domains, evolutionary relationships, specialized cells, and the differences between multicellular autotrophs and heterotrophs. Gain insights into the diverse world of plants, animals, and fungi as you dive into this quiz.