Freshwater Fish

Salinity must be less than what percentage to be considered freshwater?

• 1.05%

• 2.05%

• 4.05%

• 3.5%

Why is there such a high diversity of freshwater fish?

• food availability

• scattered habitats

• temperature levels

• salinity levels

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Freshwater fish are in what scientific kingdom?

• fungi

• protista

• plantae

• animalia

Which is a defining characteristic of the Phylum Chordata?

• multicellular

• reproduce sexually

• motile

• dorsal nerve chord

Osteichthyes are ...

• bony fish

• cartilaginous fish

• aquatic mammals

Tags

NGSS.MS-LS4-2

Sarcopterygii are the....

• lobed finned fish

• ray finned fish

Actinopterygii are the

• ray finned fish

• lobed finned fish

Chondricthyes are

• bony fish

• cartilaginous fish

• aquatic mammals

Most freshwater lay eggs. Which reproductive style is this?

• viviparity

• ovoviviparity

• oviparity

Which one explains fish that live in the ocean and travel into freshwater to lay eggs?

• anadromous

• catadromous

Tags

NGSS.MS-LS1-4