Mention the receptors for light and sound in animals.
Animals receive a variety of external information through specialized structures called sense organs or receptors. These are: (i) Photoreceptors: They receive light. (ii) Phonoreceptors: They receive sound.
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What are the two modes of coordination found in multicellular animals?
Which of the endocrine glands secretes the adrenaline hormone?
Secretion of which hormones in too little quantity than required causes diabetes?
Name multicellular organisms in which coordination is achieved only by means of chemicals.
