1. Explain what happened during the biological phenomenon called the bends. Why are SCUBA divers subject to them while free-divers and snorkelers are not?
arenít nektonic marine mammals subject to the bends?
baleen act as a sieve in the blue whale?
purpose (s) do the accessory air sacs in the seal ( Histriophoca fasiata )
What is a
heteroceral tail and how does it aid in keeping nektonic organisms afloat?
What is an epicercal tail?
squids ( oceanic or otherwise 0 produce a jet for their jet propulsion?
Nautilus like a hot air balloon?
function ( s ) does the ventral keel in fish serve? Discuss.
the lateral line system? How does
it aid in schooling of fish?
sperm whales similar to bats and the Highway Patrol?
migration of birds and whales as it relates to their reproductive cycle.
How are they similar and how are they different?
salmonids find their way back to their home stream?
Consider several factors involved in this phenomenon.
penguins stand on ice without having their feet melt the ice, which then might
refreeze around their feet locking them in place?
marine-diving mamals hold more oxygen per kg body weight than their terrestrial
myoglobin? Do humans have it
oxygen debt and how is it repaid?
killer whales ( Orcinus orca ) like lions, wild dogs, wolves, hyenas, etc. ?
How is it
possible for sperm whales to dive to depths of at least 2000 m and hold their
breath for over 1 hour? Discuss.