Where are the Malpighian tubules present in cockroach?

Which of these is true about antennae of cockroaches?

The human body is composed of how many cells?

Which of the following cells make more than half the volume of neural tissue?

Where are the calciferous glands of the earthworm present?

What type of respiration is shown by frogs in water?

What are earthworms commonly called as?

How many digits does the forelimb and hindlimb of frog have respectively?