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Describe Class Echinoidea in animal kingdom?
Sand dollars and sea urchins either have flattened disc-like bodies, or are somewhat spherical. While they lack the typical five-arm pattern, they do have five rows of tube feet that line the bottom of their shells. Sand dollars use their tube feet to walk on the ocean bottom, and sea urchins have movable spines that are used in locomotion. Echinoids feed by grazing on algae.
FATS ( = True Fats, Triglycerides, Neutral Fats) They are esters of fatty acids and 3-carbon trihydric alcohol glycerol (= glycerine). T rue fat is also called trig
Starch exists in plants as insoluble starch granules in chloroplasts. Each starch granule holds a combination of two polysaccharide forms, amylopectin and amylose.
HISTORY OF THE CELL Term "Cytology" was given by Hertwig , he also wrote a book on " Cell and Tissue ". Father of cytology = Robert Hooke. Father of Modern cytology
Q. What are the tissues that form the skin in vertebrates? The skin of vertebrates is made of epidermis is an external layer of epithelial tissue and dermis a layer of connecti
Define the Miscellaneous Applications of Sugar? Sugars are used in 1. Custards, 2. puddings, 3. pie fillings and meringues Depending on the sugar to perform vital c
Measuring ecosystem diversity is not easy, and ther e is no definite index for its measurement. It is generally assessed by the measure of species diversity in an ecosystem, often
describe the factors which decide the broad area of scientific activity?
What is crossing over? How is meiosis related to this phenomenon? The Linked alleles for instance, A-b and a- B form the gametes A-b and a-B that maintain the linkage of the al
In general what is the cause of the aneuploidies? In general the aneuploidies are caused by impaired assortment of chromosomes during meiosis. For instance, when the homologous
What is the incubation period of an infection? Incubation period is the time interval among the infection by an agent that causes disease and the first signs or symptoms of th
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