Biology Questions and Answers
information about pressure variation
and vibrations in the surrounding water.
- How different are
fecundation in osteichthyes
and in chondrichthyes?
In chondrichthyes fecundation is
internal bosteichthyy means of copulation.es fecundation generally is In (^)
external and the gametes are released
in the water, wtheir counterpart and form the zygote.here they can fecundate
- Fish identity card. How are
fishes characterized according
to examples of representing
beings, basic morphology,
skin, respiration, circulation,
nitrogen waste, thermal
control and types of
reproduction?
Examples osharks, rays, sardif representinnes, tug beings:na, salmons. (^)
Basic morphology: fins; cartilaginous skelhydrodynamic body,eton in
chondrichthyes, bony skeleton in
osteichthyosteichthyes. Skin: with scales ines and placoid scales in (^)
chondrichthyes. Respiration: branchial.
Circulation: with two chambclosed, iers. Nitrogencompletn waste:e, heart
urea in chondrichthyes, ammonia in
osteichthyheterothermic. Tyes. Thermal control:pes of reproduction: (^)
sexual, internal fecundation inchondrichthyes, external in
osteichthyes.
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