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Q. Which animals make tracheal respiration? Is there a blood-like fluid that participates in this process?
Arachnids and Insects are the arthropod animals that make tracheal respiration. In the body surface of these animals there are many orifices called spiracles that communicate with small tubules and the tracheae through which carbon dioxide and air penetrates is expelled. The tracheae ramify into tracheoles that reach all tissues of the animal.
In the circulatory system of insects the blood merely transports nutrients gases are independently transported by the tracheal system.
Explain the senses taste and smell ? The pigmented cone cells of the retina transmit information to bipolar nerve cells, then to ganglion cells, and on to the optic nerve and t
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