Class Reptilia

Question 1

Characteristics Of Lizard

In terms of species
In terms of feeding
In terms of body temperature
In terms of body size
In terms of habitat
In terms of skin

Answer 1

About 3,700 species
They feed on insects, although some feed on leaves & meat
They regulate their body temperature behaviourally, they shuttle between sunny and shady places when they need to warm up or cool down
They are less than 15cm long but the Komodo dragon(Varanus Komodoensis) grow to nearly 3m.
It occupies a wide range of habitats but they are commonly found in deserts and the tropics
The skin is composed of overlapping, keratinized scales that protect dehydration

Question 2

Facts About Reptiles

In terms of habitat
In terms of skin
In terms of respiration
In terms of limb
In terms of reproduction & fertilization
In terms of development

Answer 2

They are believed to be the first set of chordate to live on land-terrestrial but few are with young ones terrestrial and adults aquatic E.g Crocodiles, Sea Snake
The skin is dried and covered with scales
The respiratory organ is lung
They possess 2 pairs of limbs except snakes and are pentadactyl
Reproduction is sexual and fertilization is internal
Egg hatches into young reptile and there is no aquatic larva stage

Question 3

Facts About Reptiles

In terms of parental care
In terms of ear
In terms of heart
In terms of red blood cells
In terms of dentition
In terms of habitat

Answer 3

They don’t show parental care for the young ones
They have middle ear & inner ear but no external ear
They have incomplete developed four chambered heart
The red blood cells are ovoid and nucleated
They have homodont dentition
Some are aquatics while some others are terrestrial