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Q. What is the kind of circulatory system present in arthropods? Do these animals have respiratory pigments and heart?
In arthropods the respiratory system is open (lacunar). Blood, also known as hemolymph, is pumped by a heart and falls into draining tissues and cavities (lacunas) irrigating.
All arthropods have a heart, Arachnids and Crustaceans have respiratory pigments. Insects do not have respiratory pigments since their blood does not carry gases in them gases reach cells and tissues through tracheal structures.
The chemicals responsible for imparting the sweetness, classic salt taste and bitter and sour taste are summarized herewith. A. Sweet Taste Sweetness is one of the most importa
Which invertebrate groups possess one, three, four or all of the features below? Segmented bodies, hard exoskeleton, jointed legs, compound eyes, three pairs of walkin
Q. What are the two major groups into which flowering plants are divided? Angiosperm plants are separated into monocotyledonous (monocots) and dicotyledonous (dicots).
How to culture mould plant s Use either sterile dishes with potato slices or gelatin as those ready for the experiments on bacteria. Transfer mould from every of the sources in
In an experiment, isolated chloroplast thylakoids were incubated at pH 4.0 with ADP and inorganic phosphate (Pi) added to the medium and then transferred to a medium having pH 8.0.
Reaction of the futile cycle:- A) An adequate level of cAMP stimulates formation of the inactive 'D' form of glycogen synthase and the active form of phosphorylase. Thu
How many different molecules composed of (A) two (B) three, and (C) four amino acids, linked together by peptide bonds, can be made from the set of 20 naturally occurring amino aci
Enzyme Proteins that act as catalysts, speeding the rate at which biochemical reactions proceed but not altering the direction or nature of the reactions.
Are protozoans diploblastic or triploblastic ?
The sewage treatment methods can be classified into the following heads: Primary treatment Secondary treatment Tertiary treatment 1. Primary Treatment: The primary
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