Phylum of animal kingdom
Name the other phylum of animal kingdom present species with exoskeleton?
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Arthropods present exoskeleton made up of chitin. Echinoderms do not contain exoskeleton but they present a calcareous endoskeleton. Various chordates also contain an external carapace.
Name the intracellular organelles present in the bacteria?
What do you mean by the gonads? Specify the male and the female gonads within the humans?
Name the five classes of vertebrates? To which of such do human beings belong?
Write down the general duration of the menstrual cycle? Also how does the calendar contraceptive scheme work?
Is it right to consider water decomposition by the action of light on the basis of photosynthesis method?
Define the term hypersensitive reactions?
What can be said about the valves of the venous system and explain their functions?
Compared to the amphibians provide an example of evolutionary novelty which is present in beings of the class Reptilia which prevents the loss of water through the skin?
Write down the main functions of spleen? Why is a total splenectomy (or surgical removal of the spleen) compatible with life?
Regarding extracellular digestion what do you mean by chemical digestion? Answer: Chemical digestion is the sequence of enzymatic reactions to break macromolecules i
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