Biology Questions and Answers
- What similarities do birds
and reptiles share regarding
external coverage,
reproduction and excretion?
Regarding external covsimilar to reptiles as they presenterage, birds are
impermeable keratinizConcerning reproduction, ied covn botherages.
fecundation is internal and the embryo
develops within Regarding excretion, ba shelled egg.oth excrete (^) uric
acid.
- How do birds reproduce?
Birds, like every vertebrate, have sexual
reproduction.within shelled eggs containin Their embryos dg evelop
extraembrythe mother’s body.onic membranes and outside
Birds coand it occurs opulate. Fnly before the femaleecundation is internal
gamete is involved by the calcareous
eggshell.
- Is the embryonic
development in birds direct or
indirect?
The embryonic development is direct,
there is no larval stage.
- What are the
predominating chemical
compounds respectively in
eggshell, white and yolk?
The eggshell is basicallycalcium carbonate. The white, o made ofr
albumen, is compprotein. The yolk osed by albumin, is predominantly a
constituted of lipids but it also contains
proteins and vitamins. - How different are reptiles
and birds concerning the
maintenance of body
temperature? Are birds rare in
polar regions?
Reptiles are heterothermic, i.not control their body temperature.e., they do
Birds hhomeothermic animals, thowever are the firstey are (^) able to
maintain their body temperature
constant.
There are many birds that live in intense
cold regions. Pbirds that live in polar region.enguins are examples of
- What are zoonoses? What
are some examples of
zoonoses transmitted by
birds?
Zoonoses artransmitted be human diseasesy animals. Psittacos (^) is, a
bacterial disease, hystoplasmosis and
cryptococcosis,examples of zoonoses transmitted by fungal diseases, are (^)
birds.
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