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Water movement through the integument
The integument of most terrestrial animals is relatively impermeable to water and very little water is lost through the skin.
Table: Evaporative Water Loss of Animals under Desert Conditions
You have seen in the above table that insects lose very little moisture through the integument. It is due to the presence of waxy cuticle which is highly impermeable to water. The wax is deposited on the surface of the exoskeleton through fine canals that penetrate the cuticle
Give detailed structure of gills,book lungs
Although there are differences in interpretation of the evidence, it is generally accepted that human biological evolution has not been a linear progression from one species to the
How are the main classes of arthropods classified according to the presence of larval stage in their embryonic development? In crustaceans there are species with direct and oth
CL A W S - In rabbit and other animals claws present, made up of keratine or S. corneum. Dorsal plate is unguise & ventral plate is sub unguise . Helpful in digging
Q. Why is meiosis significant for the maintenance of the normal quantity of chromosomes of a species with sexual reproduction? A reduction to a half of the maximum normal quant
The bases in DNA have carbon-nitrogen ring structures; due to the nitrogen atoms they are known as nitrogenous bases. There are two parts of ring structure. Adenine and guanine are
Define Water of oxidation or metabolic water? Water that arises from oxidation of foods within the body, which is referred to as water of oxidation or metabolic water. Water wh
Vascular Cambium The vascular cambium usually, if not always, has a dual origin within the primary tissues; from provascular strands, and from the "ground" meristem tissues be
Q. How can the blood coagulation (clotting) process be described? Blood clotting encompasses a sequence of chemical reactions whose respective products are enzymes that catalyz
Q. Optional use values of biodiversity? Optional values are associated with potential use in the future. Accordingly one opts to conserve biodiversity based on the hope that it
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