Biology Questions and Answers
Reptiles
- Which is the vertebrate
class that is considered the
first entirely terrestrial?
The first entirely terrrestrial vertebrateclass, totally independent from the
aquatic habitat, is the class Reptilia.
- Compared to amphibians
what is an example of
evolutionary novelty present
in beings of the class Reptilia
against the loss of water
through the skin?
The reptile skin is keratinizimpermeable to water while theed and
amphibian skin is peimpermeability made impossible rmeable. The skinthe
cutaneous gas exchange performed by
amphibians and respiration dependent on internal organs likebecam e
airways and lungs.
- What are examples of a
carnivorous and a herbivorous
reptile?
Snakes are carnivorous. Iguanas are
herbivorous.
- Do beings of the class
Reptilia perform gas exchange
in the same way amphibians
do?
These beings do not have permeableskin so they do not make cutaneous
respiration like in birds and in mammals, thamphibians deiro. Just like
respiration is pulmonary. - How is the circulatory
system of reptiles
characterized? What is the
basic difference between the
reptile and the amphibian
heart?
The circulatory system of beings of the
class Reptilia is similaramphibian, closed and incompl to the (^) ete.
Although the heart presents three
chambers (two in reptiles there is a batria and one ventricle)eginning of
ventricular searterial with venous blood is lessened.ptation and the mixture of
- Which is the type of
nitrogen waste eliminated by
beings of the class Reptilia?
These beings excrete This substance is less toxic thanmainly uric acid.
ammonia and it can be kept stored for a
longer time iincluding within enside the individual,ggs. In addition (^) uric
acid is practically insoluble and it
depends less on water to be eliminated.
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