twice a week
]
2-4
40-50% of fish are sold each year
In table tennis, each player gets two serves before the serve switches to the opponent.
In volleyball, each team gets three serves per rotation.
about 5
You should eat two portions of fish a week. One of the portions should be oily fish such as sardines or mackerel.
119;9
most fish usually have two internal ears on each side of their head
There are no records of such things.
Generally anywhere between 4 to 8 oz. or a single fillet depending on the size of the fish.
Both fish, and fish tanks, come in different sizes. So the number of fish that ideally should be in a tank, depends. Somewhere between one and a hundred would be normal.
two layers of gills on each side