Podcast
Questions and Answers
What type of symmetry do animals in the bilateral group exhibit?
What type of symmetry do animals in the bilateral group exhibit?
- Asymmetry
- No symmetry
- Bilateral symmetry (correct)
- Radial symmetry
Which of the following correctly categorizes the levels of organization from simplest to most complex?
Which of the following correctly categorizes the levels of organization from simplest to most complex?
- Cellular, Tissue, Organ, Organ System (correct)
- Organ System, Cellular, Tissue, Organ
- Tissue, Organ, Cellular, Organ System
- Organ, Organ System, Tissue, Cellular
What classification is indicated by the presence of a true coelom?
What classification is indicated by the presence of a true coelom?
- Pseudocoelomates
- Coelomates (correct)
- Acoelomates
- Ectoderms
In the taxonomy of animals, which phylum includes animals with a notochord at some stage of development?
In the taxonomy of animals, which phylum includes animals with a notochord at some stage of development?
Which term describes the classification system that ranks organisms from broad to specific categories?
Which term describes the classification system that ranks organisms from broad to specific categories?
Flashcards
Animal Classification
Animal Classification
Organizing animals based on shared characteristics (levels of organization, symmetry, body cavities, and phyla).
Body Cavity
Body Cavity
A fluid-filled space between the digestive tract and the body wall in some animals.
Bilateral Symmetry
Bilateral Symmetry
Having a body plan with a distinct left and right side that are mirror images.
Phylum
Phylum
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Radial Symmetry
Radial Symmetry
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Study Notes
Animal Kingdom Classification
- Kingdom: Animalia
- Characteristics: Multicellular organisms
- Levels of Organization: Cellular, tissue, organ, and organ system levels
- Symmetry: Radial (with multiple planes of symmetry), mostly asymmetrical, bilateral (with one plane of symmetry)
- Body Cavity: Acoelomates (without body cavity), Pseudocoelomates (with a false body cavity), and coelomates (with a true body cavity)
- True coelem
- Phyla: Porifera, Coelenterata, Ctenophora, Platyhelminthes, Aschelminthes, Annelida, Arthropoda, Mollusca, Echinodermata, Hemichordata, Chordata are examples of phyla.
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