AMPHIBIANS AND REPTILES
- What are amphibians? Amphibians
are the animals that can live both on land and in water. Their name
comes from the Greek amphi meaning 'both' and bios life.
- Name the three groups of
Amphibians: The three groups of
amphibians are the Frog group, Newt group and the Caecilians.
- What is the breathing organ of the
Amphibians? The skin is the
breathing organ of the Amphibians.
- Which are the creatures belonging to the Frog
group? Frogs and Toads belong to
the frog group.
- What are the creatures belonging to the Newt
group? Newts and Salamanders
belong to the Newt group.
- Which are Caecilians? They are
mysterious worm-like creatures, most of which spend their entire life
burrowing underground.
- What are the difference between a Tadpole and a
Frog? A Tadpole lives in
water. A frog lives both on the land and in the water. The
tadpole breathes with gills, while the frog breathes through skin. The
tadpole swims with the help of a tail while the frog which is tailess, uses
its webbed feet or swim.
- Where can we find the tree
frogs? The tree frogs can be found
in the tropical forests. Most of the time they spend on the tree tops.
- What is the difference between the frog and the
toad? The frogs are smooth skinned
while the toads are warty.
- Where do the amphibians lay their
eggs? Almost all the amphibians
lay their eggs in ponds and slow moving streams, as the water keeps the eggs
from drying out.
- Which amphibians are
vegetarians? Tadpoles of frog and
toads are vegetarians.
- What helps the amphibians to keep their skin
moist? The skin of all amphibians
are liberally scattered with glands. Most of these glands produce
mucus to keep their skin moist.
- Which is the largest amphibian in the
world? The largest amphibian is
the Chinese giant salamander (Andrias davidians). Its length is about
5ft 11 inches it weighs about 65 kg.
- Which is the smallest amphibian in the
world? The smallest amphibian is
the arrow poison frog (Triturus helveticus) found in Cuba. It has a
length of 0.44-0.48 inches.
- Which amphibian is the most
poisonous? Most poisonous is the
Golden arrow-poison frog (phyllobhates terribilis) found in South
America. The poison is derived from the skin secretions which is
enough to kill 2200 people.
- Which salamanders are the most
beautiful? European news are the
most beautiful among the salamanders. It resembles multi-coloured
dragons.
- Which is the largest Newt in the
world? The largest Newt in the
world in Ribbed newt which is found in Morocco.
- Which is the smallest Newt in the
world? The smallest Newt is
stripped newt found in the United States.
- Which is the largest frog in the
world? The largest known frog is
the rate Goliath frog (Rana goliath) found in Equatorial Guinea. It
weighs about 3kg.
- What are Reptiles? Reptiles are
the group of vertibrates covered in scales, the females of which are
fertilize within their bodies.
- Name some common reptiles:
Crocodiles, Turtles, Lizards, and snakes.
- Name some important extinct
reptiles: Some extinct reptiles
are Dinosaurs, Pterosaurs Plesiosaurs and Ichthyosaurs.
- What are the four groups of
reptiles? The four groups of
reptiles are Turtles, Crocodiles, Snakes and Tuatara.
- In which reptile family do the lizards belong
to? The lizards belong to the
snake family.
- What is the peculiarity of the blood of the reptiles and the
amphibians? The reptiles and the
amphibians are cold blooded. They lack the internal mechanism for
controlling body temperature.
- Which is the largest
lizard? The largest lizard
is the Komodo Dragons found in Indonesian islands. It is about 9
metres (12 ft) long and weighs 300 pound. It belongs to the group of
monitor lizards.
- What is the gecko? The
gecko is the ordinary nocturnal lizard that climbs on walls and ceilings
using suction pads on fingers and toes.
- How do the flying lizards
travel? The flying lizards travel
by stretching out a membrane between projecting ribs to glide.
- What enables the chameleon to change its
colour?
The colour change in chameleon is brought about by the action of the nervous
system in concentrating or dispersing the pigments in the chameleon's skin
cells. The sun light also can change its colour.
- What is the peculiarity of the eyes of the
chameleon? The chameleons have
thick eyelids that leave only a slight slit to see through, but to make up
for the limited field of view each eye ball can move independently.
- How many kinds of snakes are
there? There are over 2000
different kinds of snakes.
- Why does the snakes shed their
skins? Their bodies continue to
grow through out their lives. As the body grows, the size of the skin
becomes small. That is why the snakes shed their skin.
- Which are the most dangerous
snakes? Rattle snakes, adders,
mumbals, coral snakes, bushmasters, fer-de-lance, cotton-mouths, copperheads
and cobras are the most dangerous snakes.
- Which is the biggest venomous
snake? The king cobra found in
Asia, which can reach a length of 18 feet.
- Which is the largest and heaviest
reptile? The largest reptile in
the world is Esturaine or salt-water crocodile found in South-east
Asia. Adult average male has a length of 14-16 ft and weights about
400-520 kg.
- Which is the smallest reptile?
The smallest known reptile is a tiny gecko found in Virgin Gorda
islands. The largest measured is 0.71 inches.
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