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Answer 1

Answer:

1. There are three kinds of blood vessels: arteries, veins, and capillaries. Each of these plays a very specific role in the circulation process. Arteries carry oxygenated blood away from the heart. They're tough on the outside but they contain a smooth interior layer of epithelial cells that allows blood to flow easily.
2. the regular beating in your body as blood is pushed around it by your heart. You can feel your pulse at your wrist, neck, etc.
3. Human fertilization is the union of a human egg and sperm, usually occurring in the ampulla of the fallopian tube. The result of this union is the production of a zygote cell, or fertilized egg, initiating prenatal development. Scientists discovered the dynamics of human fertilization in the nineteenth century.
4. Budding - Budding is an asexual mode of producing new organisms. In this process, a new organism is developed from a small part of the parent's body. A bud which is formed detaches to develop into a new organism. ... For example- Both hydra and yeast reproduce by the process of Budding. Fragmentation - Fragmentation is observed in nonvascular plants as well, for example, in liverworts and mosses. Small pieces of moss "stems" or "leaves" are often scattered by the wind, water or animals. If a moss fragment reaches a suitable environment, it can establish a new plant. Spore formation - Examples are the conidial fungi Aspergillus and Penicillium, for which mitospore formation appears to be the primary mode of reproduction. Other fungi, such as ascomycetes, utilize both mitotic and meiotic spores.
5. heating effect
6. heating effectThis happens due to the conversion of some electric energy passing through the conductor into heat energy. This effect of electric current is called the heating effect of current. Example, Electric iron, electric toaster, water heaters, etc., work on this effect.
7. Before buying any electrical appliance, we should look for the ISI mark of the Bureau of Indian Standards on the appliance (ISI stands for Indian Standards Institution). The ISI mark ensures that the appliance is safe and energy efficient (the wastage of energy being the minimum).
8. Groundwater, water that occurs below the surface of Earth, where it occupies all or part of the void spaces in soils or geologic strata. It is also called subsurface water to distinguish it from surface water, which is found in large bodies like the oceans or lakes or which flows overland in streams.