class ostiechthyes Flashcards
1
Q
scales
A
round, thin, and flexible (have rays - a thin membrane over bone to allow for flexibility)
2
Q
gill type
A
gills w/ operculum (bony plate)
3
Q
lateral line system
A
pits on the side of the body used to sense vibration in the water
4
Q
tail?
A
homocercal - even shape
5
Q
swim bladder
A
gas filled sac that can be adjusted to keep a fish from sinking/floating
6
Q
what are the three most common color patterns in fish
A
cryptic - blend in w/ environment
disruptive - stripes, etc.
countershading - bottom lighter than the top
7
Q
schooling behavior
A
swimming in large, coordinated groups with no leader - usually for feeding
8
Q
broadcast spawning
A
release of sperm and eggs into the water
9
Q
species examples
A
sea horse, clownfish, angler fish
