Help!

princessshannie

Earning My Ears
Joined
Jan 7, 2006
Messages
39
sorry i really need help with this part of my hw i have been searching the internet and cant find the answers i have done all of my homework except this 1 part and another part that hopefully i dont need help on but here is my questions... it says name the the common name and scientific name for the following things... bat wing, bird wing, butterfly wing, cat forearm. fish fin, fish tail fin, frog forearm, human arm, whale/ dolphin fin, whale/dolphin fluke... that is all that i need help with right now there was like 100 of those i had to answer and those were the ones i could not figure out sooo if you could help me i would thank you so much (:
 
oh come on people i really need some help with this im sooooo tired ive been doing this almost all day
 

Bat bones tend to be light and slender (which accounts in part for the sparse fossil record of bats). As in birds, bats have some reduced bones; note in
the picture below that the ulna and fibula are shortened and thin. Bats, like birds, also have fused cranial bones for additional lightness.

Like most birds and pterosaurs, bats have a keel on the sternum, or breastbone, to which the large flight muscles attach. Unlike birds and pterosaurs, in which the wing is supported by the bones of the arm and one finger, a bat's wing membrane, or patagium, is supported by the arm and by four highly elongated fingers (hence the name Chiroptera, or "hand-wing," for the bats). The patagium extends all the way around to the bat's hind legs and tail, where it forms a flap called the uropatagium, supported by specialized foot bones called calcars. Not only does the uropatagium help the bat fly and maneuver, it is often used to sweep prey, such as insects on the wing, into the bat's mouth while the bat is in flight.
 
Thank you so much! I can't wait until i have no more home work (: oh well at least i dont have to work. (yet)
 
Hannie. That's what I call my daughter. I couldn't avoid helping someone with such a name!

Good luck getting to the end.
 


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