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Q. What are the steroids? What are the few examples of steroids with a biological function?
Steroids are lipids based in an angular combination of four carbon rings, one ring made of five carbons and three of them made of six carbons in the extremity. The union of each ring to the adjoining ring is made by the sharing of two adjoining carbons belonging to both rings.
Bile salts, cholesterol, the sexual hormones estrogen, testosterone and progesterone, the corticosteroids and the pro-vitamin D are examples of steroids.
Water Logging Over saturation of soil with water is called water logging. If for any reason, the water-table rises close to the ground surface it is bad for plants and soil fer
Q. How are the three major arthropod classes characterized according to the number of limbs? Most crustaceans have five pairs of limbs. Arachnids present four pairs and Insects
Q. Do all the eukaryotic cells have nucleus and/or only one nucleus? There are eukaryotic cells devoid of a nucleus and others with more than one nucleus. Osteoclasts, the cell
Explain expansion in Red Cells during pregnancy? Production of red cells is stimulated and their numbers gradually rise. However, as compared to the expansion in plasma volume
What is the difference between an ecological niche and a habitat? An ecological niche is a set of peculiar activities, resources and methods that a species explores to survive
who proposed the trinominal nomenclature
What is Class Reptilia ? Class Reptilia include the vertebrates that have successfully transitioned to a terrestrial lifestyle by evolving protective scales and a "land egg."
how many kingdom and phylum are there?
FEMALE REPRODUCTIVE SYSTEM - In female mammals the female reproductive system characteristically comprises of the ovary, uterus, placenta, vagina and vulva.
Define Class Cephalopoda in animal kingdom? This group-including squids, octopuses, and the nautilus-is considered by most scientists to have the highest intelligence among all
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