Podcast
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?
Where are fish scales located on the body?
Where are fish scales located on the body?
Flashcards
Distinguishing features of fish?
Distinguishing features of fish?
Fins and scales are the key distinguishing features.
Fish group of less concern to farmers?
Fish group of less concern to farmers?
Rays and sharks are cartilaginous fish, generally not farmed.
First barrier against microbial penetration in fish?
First barrier against microbial penetration in fish?
The transparent layer of cells is the initial defense.
Super-order of the most present-day fish?
Super-order of the most present-day fish?
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Location of fish scales?
Location of fish scales?
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