Which of the following are true about reptiles?
a) blood: red, respiratory organ: lungs, excretory organ: metanephric kidneys
b) blood: red, respiratory organ: gills, excretory organ: metanephric kidneys
c) blood: green, respiratory organ: lungs, excretory organ: metanephric kidneys
d) blood: blue, respiratory organ: gills, excretory organ: metanephric kidneys
Explanation: gill slits appear in embryo stage but gills never develop in reptiles
Reptiles are…….
a) ammonotelic
b) ureotelic
c) uricotelic
d) both a and b
Explanation: they excrete uric acid crystal to conserve water
Which of the following were the dominant reptiles in Jurassic period and cretaceous period?
a) lizards
b) dinosaurs
c) snakes
d) crocodiles
Explanation: all the present day reptiles are the descendents of dinosaurs (extinct now due to environmental hazards)
Which of the following is called the living fossil?
a) green turtle
b) cobra
c) crocodile
d) Sphenodon punctatum
Explanation: it is found in New Zealand
Class Aves (Birds):
Which of the following are considered to be evolved from reptilian ancestors?
a) birds
b) mammals
c) amphibians
d) both a and b
