Which of the following groups of animals do not possess a...
Which of the following groups of animals do not possess a nervous system?
Porifera
Cnidaria
Platyheminthes
Nematoda
Correct answer is A
Porifera are 'pore bearing' organisms, commonly known as sponges, are the only multicellular organisms without a nervous system. Their response to stimuli is by a contraction in their bodies.
Plants growing on sand are called as ...
The part of the skin which is excretory in function is the ...
The parts that supply food and water to the developing embryo are labelled ...
Blood carrying digested food from the small intestine flows into the liver via the ...
Which of the following type of soil has the highest water retaining capacity? ...
Amphibians are normally found ...
Lateral meristem in flowering plants is found in the A. cortex B. pericycle C.&n...