Questions and Answers
What is a multi-celled eukaryotic heterotroph without cell walls?
What phylum do flatworms belong to?
Platyhelminthes
What is the phylum of jellyfish and coral?
Cnidaria
Which phylum do snails belong to?
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What phylum do segmented worms belong to?
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What is the phylum that includes insects and spiders?
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What type of animals belong to Echinodermata?
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What is the phylum to which sponges belong?
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What class of Chordata are mammals a part of?
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What class do birds belong to?
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What class do amphibians belong to?
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What class do reptiles belong to?
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What class do fishes belong to?
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What phylum do all chordates belong to?
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Study Notes
Animal Classification Overview
- Animals are multi-celled eukaryotic heterotrophs that lack cell walls.
- They demonstrate diverse structures and functions, categorized into various phyla and classes.
Phylum Platyhelminthes
- Characterized by bilateral symmetry and a mouth, but no anus.
- Commonly includes flatworms, many of which are parasitic.
Phylum Cnidaria
- Known for stinging cells and radial symmetry.
- Includes jellyfish and corals, with a mouth but no anus.
Phylum Mollusca
- Soft-bodied organisms with shells and bilateral symmetry.
- Have both a mouth and an anus; an example is the snail.
Phylum Annelida
- Segmented worms that exhibit visible blood vessels and bilateral symmetry.
- Possess both a mouth and an anus.
Phylum Arthropoda
- Features jointed legs and bilateral symmetry.
- Includes organisms like insects and spiders, with a mouth and anus.
Phylum Echinodermata
- Comprises sea stars and sea urchins; exhibits radial symmetry.
- Characterized by a digestive tract, gills, and open circulation (not part of the syllabus).
Phylum Porifera
- Organisms that are multicellular and without symmetry.
- Known as sponges, they are filter feeders and often attach to rocks.
Phylum Chordata - Class Mammalia
- Organisms that have a mouth and anus, bilateral symmetry, and fur.
- Warm-blooded and nurture their young with milk.
Phylum Chordata - Class Aves
- Possess feathers, cold-blooded scaly legs, and exhibit bilateral symmetry.
- Have a mouth and anus, and are warm-blooded.
Phylum Chordata - Class Amphibia
- Features moist skin, bilateral symmetry, and a mouth and anus.
- Cold-blooded, they lay eggs in water.
Phylum Chordata - Class Reptilia
- Show scales, cold-blooded nature, and can lay eggs on land.
- Have a mouth and anus and bilateral symmetry.
Phylum Chordata - Class Pisces
- Fish with scales and a mouth and anus.
- Cold-blooded and lay eggs in water.
Phylum Chordata
- All members have bilateral symmetry and a mouth and anus.
- Distinguished by possessing a notochord, which serves as a primitive backbone during development.
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Description
Explore the diverse world of animal classification with these flashcards. Each card provides key definitions and characteristics of various animal groups, from multi-celled eukaryotes to specific phyla. Perfect for students and enthusiasts looking to enhance their understanding of animal biology.
