Phylum of animal kingdom-exoskeleton
Which other phylum of animal kingdom present species with exoskeleton?
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Arthropods present exoskeleton made of the chitin. Echinoderms don’t have exoskeleton however they present the calcareous endoskeleton. Some chordates also have external carapace.
What is best identification hypothesis for a plant tissue seen under microscope having most cells undergoing cell division?
Explain te term Process of Oogenesis in brief?
From intestinal lumen via to the tissues - describe the route of nutrients after digestion?
How the intensity of simple diffusion is differ in relation to the concentration gradient of the moved substance?
Give a brief introduction of the term immunoglobulins? And also describe its structure?
Explain the main substances transmitted from the mother to the fetus via the placenta and from the fetus to mother?
What is the cell division through the first phase of the embryonic development called? Also explain that how is this stage characterized?
How are Annelid characterized according to illustrations of representing beings, fundamental morphology, kind of symmetry, germ layers and coelom, excretory system, respiratory system, digestive system, circulatory system, nervous system and kinds of reproduction?
What are physiological systems called as the integrative systems? Justify this designation?
What is the pH inside stomach? Why it is the required to keep that pH level? How it is maintained? Specify the cells which maintains that particular pH?
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