Which of the following pairs of animals has non-glandular skin
Snake and Frog
Chameleon and Turtle
Frog and Pigeon
Crocodile and Tiger
B.
Chameleon and Turtle
Given below are types of cells present in some animals. Which of the following cells can differentiate to perform different functions?
Choanocytes
Interstitial cells
Gastrodermal cells
Nematocytes
B.
Interstitial cells
Which one of the following sets of animals share a four chambered heart?
Amphibian, Reptiles, Birds
Crocodiles, Birds, Mammals
Crocodiles, Lizards, Turtles
Lizards, Mammals, Birds
B.
Crocodiles, Birds, Mammals
Ravi’s younger brother of class III stated that bats are like birds as they are able to fly.
How will you contradict him and make him understand that bats are mammals and not birds?
Flight is not only the criteria for classifying bat as birds. The features that bat has which prove that it is a mammal and not a bird are:
i. External ears
ii. Body covered with hairs and mammary glands.
iii. They have skin instead of feathers and mouth.
iv. They have teeth instead of the beak.
v. They do not lay eggs but give birth to young ones.
In some animal groups, the body is found divided into compartments with at least some organs/ organ repeated. This characteristic feature is named
Segmentation
Metamerism
Metagenesis
Metamorphosis
B.
Metamerism