Which reptile is characterized by the presence of four-chambered heart?
Forelimbs in birds are:
Which animal does not belong to Class Pisces?
Which of the following is not a characteristic feature of mammals?
All fishes and amphibians are said to be cold-blooded animals. What does cold-blooded mean?
Which of the following is not a fish?
Jellyfish belong to a animal group called invertebrates because they don't have backbones while fish are vertebrates because they have backbones.
Scales are present in:
Although separated by millions of years of evolutionary History, most fish and reptiles are vertebrates who share a number of similar traits, including the presence of vertebral columns and scales, as well as ectothermic metabolisms.
Incomplete divided ventricle can be seen in the heart of
Which of the following lays eggs?
Which feature is shared by crocodile with all mammals?