Qualification > Sciences
IGCSE Biology Paper 3
hdbkiwi:
Yes but birds don't have pinna on ear-which can be moved for maximum efficiency in sound detection.
sweetie:
--- Quote from: notty_me on June 09, 2009, 12:03:20 pm ---hey guys,
4 da animal feed que. wasnt da energy in feed more dan energy in wheat?????
but in da que. dey said 'why is da energy in feed less???
soooooooooo >:(
plz help :-*
--- End quote ---
ppl am i rite?????????/
aquarian93:
producer has to be the most tho
cool_dude:
--- Quote from: examsaresoon on June 09, 2009, 12:28:11 pm ---They do have external ears! I have pet birds myself!
"Birds have external ears but they can't be seen. Most birds have their ear holes covered with tiny feathers specially designed to cut down on wind noise while permitting sound waves to pass through."
*i hope i don't sound arrogant*
--- End quote ---
but the answer seems to be only mammal..
sorry dude..
abcdef:
how many marks for blood clotting ? i think i got wrong.
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