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Q. Bird identity card. How are birds characterized according to examples of representing beings, basic morphology, respiration, skin, nitrogen waste, circulation,thermal control and types of reproduction?
Examples of representing beings: chickens, sparrows, parrots, ostriches, penguins. Basic morphology: pneumatic bones, aerodynamic body, feathers, horny beaks. Skin: impermeable feathers, keratinized, uropygial gland. Respiration: pulmonary, Circulation: complete and closed, heart with four chambers. Nitrogen waste: uric acid, Thermal control: homeothermic. Kind of reproduction: internal fecundation, sexual, shelled eggs with extraembryonic membranes.
Q. What is the embryonic characteristic that evolutionarily makes echinoderms proximal to chordates? Chordates and Echinoderms are deuterostomes that is in their embryonic deve
Fertilisation: Fertilisation is the process of fusion of male and female gametes. For fusion of male and female gametes, pollen grains have to reach the surface of the stigm
Phylum Chlorophyta (green algae) 1) The chlorophyll is the main photosynthetic pigment. 2) There is little or no cell differention in thallus. Thallus is usually filamento
Explain the Compartments of Body Water? Within the body, water is found in two major compartments. These are: - The intracellular compartment (inside the cell) - The extr
Q. Cows swallow their food once and then this food goes back to the mouth to be chewed again. How can this phenomenon be explained? The food ingested by cows and other ruminant
COMMON DISEASE OF CAMELS - 1 . SURRA - Surra = Rotten. Spread by biting & blood sucking flies, dropping neck, half closed eyes are common symptoms. 2 .
What is adaptive radiation? Adaptive radiation happens when a new population in a new environment, like an island, undergoes divergent evolution until the descendant population
Define Water of hydration and Bound Water - Water Found in Food? Water of hydration: This moisture is chemically bound to the constituents of the material and in most cases w
Q. In arthropods why isn't gas exchange done through cutaneous diffusion? In arthropods the impermeability of the exoskeleton makes the way of gases difficult. In addition the
main branches of biology
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