Concept explainers
Videos
The term “metazoan” is synonymous with “multicellular animal.” Are there any single-celled animals? How are single-celled eukaryotes classified?
To determine: Are there any single-celled animals and to explain the way in which the single-celled eukaryotes are classified.
Introduction: The single-celled organisms, which are also called unicellular organisms, contain a single cell. They fall into two groups, namely eukaryotic organisms (protozoa, unicellular fungi, and unicellular algae) and prokaryotic organisms (bacteria and archaea).
Explanation of Solution
There are technically no single-celled animals, but many single-celled organisms come under Kingdom Protista. These organisms have many characteristics similar to animals. Some examples are Paramecium and Amoeba.
The single-celled organisms are termed as protozoans and are classified under Kingdom Protista.
Want to see more full solutions like this?
Chapter 12 Solutions
LooseLeaf for Integrated Principles of Zoology
- Differntiate between flagellated protozoan,ciliated protozoan and protozoan?arrow_forward. In what way are the cells of plants and animals structurally different from single-celled eukaryotes?arrow_forwardCells in a multicellular organism have specialized to such an extent that they have little in common with single-celled organisms. (True orfalse?)arrow_forward
- This organism belongs to which phylum? What region of the body is 1?arrow_forwardWould you expect a cell of a multicellular organism to be more complex than the cell of a unicellular organism? Less complex? Why?arrow_forwardhow do unicellular differ from single cell multicellular organisms differarrow_forward
- Do protozoans have a cellular nucleus?arrow_forwardIs the cell the fundamental unit of life in plasmodial slime molds? Or is the “whole organism,” regardless of cellular composition, the fundamental unit? Explain your answer.arrow_forwardCell walls exist in plant cells for the purpose of rigidity and structure, but how come they are also present in prokaryotes? Which types of cells exactly have cell walls? Is it all cells but animal cells?arrow_forward
- Why would parasitic eukaryotes like Taenia or Plasmodium need intricate life cycles?arrow_forwardWhat differences are there between a free living, single celled organism such as a paramecium and a single human cell such as a ciliated cell of the respiratory tract.arrow_forwardwhat 2 cell structures that are unique to Eukarya?arrow_forward
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning