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Questions and Answers
What distinguishes fish from other vertebrates?
What distinguishes fish from other vertebrates?
- Absence of a neck
- Presence of fins and scales (correct)
- Respiration through gills
- Elongated fusiform body
Which major group of fish is of no concern to fish farmers?
Which major group of fish is of no concern to fish farmers?
- Rays and sharks (correct)
- Super-order Teleosteii
- Cartilaginous fish (Selachians)
- Bony fish of Osteichthes
What forms the first barrier against microbial penetration in fish?
What forms the first barrier against microbial penetration in fish?
- Fragile layer of cells
- Transparent layer of cells (correct)
- Mucus covering scales
- Cornified layer of dead skin
Which super-order comprises the majority of present-day fish?
Which super-order comprises the majority of present-day fish?
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Where are fish scales located on the body?
Where are fish scales located on the body?
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