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Q. Class Reptilia identity card. How are they characterized according to examples of representing beings, basic morphology, skin, respiration, circulation, nitrogen waste, thermal control and types of reproduction?
Instance of representing beings: crocodiles, turtles, snakes, lizards, dinosaurs (extinct). Basic morphology: tetrapods, some with carapaces like turtles. Skin: impermeable keratinized, corneous plates known as scales. Respiration: pulmonary. Circulation: incomplete, closed, heart with three chambers and partial interventricular septation. Nitrogen waste: uric acid. Thermal control: heterothermic. Kind of reproduction: internal fecundation, sexual, shelled eggs with extraembryonic membranes.
Give a specific example of homeostasis An owl handles its body temperature by burning fuel to make body heat and by fluffing up its feathers to trap an insulating layer of air
CLASSIFICATION OF GENERAL DRUGS - 1 . NATURAL DRUGS - Obtained from natural sources as minerals, animals, plants & microorganism. (i) Minerals - It include
Q. Do all molecules of DNA have the same amounts of nitrogenous bases? Number and sequence of nitrogenous bases in DNA molecule are key elements in variations which are found i
explain five kingdoms?
Open Water Zone - Lake Ecosystem This extends beyond the littoral zone and is too deep for light to penetrate till the bottom and for rooted plants to grow. This zone is divid
Q. What is meant by the peripheral nervous system (PNS)? The peripheral nervous system comprehends the ganglia and nerves of the body.
Fragmentation - Types of Asexual Reproduction Fragmentation is a phenomenon where parent animal spontaneously (on its own accord) splits into two or more fragments. Each one o
Explain about the Cancer and Infertility - Obesity? Cancer: Risk of cancers of the colon, rectum and prostrate increases greatly in obese men while obese women are more likely
explain the lock and key theory
#what is the habitat of phylum protozoa
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