Biology Questions and Answers
Birds
- What are the main
morphological features of
birds?
Birds araerodynamic bodies covee animals that presentred with (^)
feathers, anterior into wings, pneumaticlimbs transform bones and hornyed (^)
(corneous) beaks.
- In which habitat do birds
live?
Birds are terrestrial animals but the
majority of species also exaerial environment by flying.plore the
- What are flight adaptations
present by birds?
Wings associated to a pectoral musculature, pneumatic bones,well-developed (^)
less accumulation due to the absence of feces in the bowelsof the colon,
absence storage), aerodynamic body and lungsof the bladder (no urine (^)
with specialized air sacs are all
adaptations which enable birds to fly.
- What are pneumatic bones?
Birds hinternal spaces fave lightweigilled with air. Thted bones withhese
bones are called pneumatic bones. This
feature reduces the corporal dthe animal facilitating the flight.ensity of- How is the respiratory
system of birds characterized?
Like reptiles and mammals,gas exchange through lungs. they make - How is the circulatory
system of birds characterized?
Birds, like every vertebrate, have a
closed circulatorysimilar to the mammalian h system. The heart iseart, having (^)
four chambers (two atria and two
ventricles)venous and arterial bl and with no mixturood. (In e of
mammals, however, the aorta curves
down to the left and in birds it curvdown to the right). es
- Which is the type of
nitrogen waste birds produce?
Why does this feature, besides
being an adaptation to the
terrestrial environment, also
mean an adaptation to flight?
Birds are uricotelic, i.e., like reptiles,
they excrneeds less water ete uric acid. This suto be eliminated bstanceand (^)
so it helps to reduce the body weight
thus aiding in flight.
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