Humans have lungs to extract oxygen from the air. Fish have gills to extract oxygen from the water.
Humans must first dissolve the gasses in water (in the alveolii of the lungs) before we can extract it, whereas fish only can get the gasses already dissolved. Also - fish have a one-way respiratory system whereas humans have an in and out respiratory system.
Yes, fish have gills for respiration, while humans have lungs. Fish use gills to extract oxygen from water, while humans use lungs to extract oxygen from air. Fish also have a swim bladder to help regulate buoyancy, which is not present in humans.
The zebra fish will have a higher respiration rate
The gill of a fish removes dissolved oxygen from the water it lives in. In humans the lung performs a similar role by separating oxygen from the air which is mostly nitrogen.
only some fish are poisonous to humans
Some fish do, but not exactly like humans. Bony saltwater fish lose water by osmosis. To replenish the lost water, the fish need to drink.
All fish respire via the gills.
Animals = lungs Fish = gills
No , nostrils are absent in fish , fish inhale water by open mouth .
i fish
shellfish are not fish the are confishy.They have exoskelitonS.
A bull shark is a fish, humans can eat fish.