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Q. How do fishes do gas exchange?
Fishes "breath" through gills, branchiae or Gills, are highly vascularized organs specialized in gas exchange under water and present in aquatic animals (crustaceans, marine annelids, tadpoles and fishes). Gills are a respiratory organ (analogous, for instance, to lungs) containing very thin lamellae with many apparent blood vessels in direct contact with water.
In osteichthyes the gills are covered by a bony flap that protects them called as operculum, in chondrichthyes there are no opercula.
What is the tree girdling? What happens to the plant when that girdle is removed from the stem (below the branches)? Tree girdling or Malpighi's girdling is the removal from a
In meiosis - starting from stage G1 through the completion of meiosis, how much DNA is in each stage/phase when referring to the nucleus of spermatagonia?
vasoconstriction
Define the Estimation of Haemoglobin in Blood? Several methods are used to determine haemoglobin. In these methods hemoglobin is measured as oxyhaemoglobin, carboxyhaemoglobin,
2.?In order to increase muscular force production, muscular contractions may be modulated in two ways. Explain.
what is the job of the cell coat?
Q What do protozoans "eat"? Do they move in search for food? Protozoans are heterotroph beings that are they do not make their own food and thus they need to search for it in t
Truffles, morels and the many yeasts that are basic to fermentation processes belong to this group of fungi. These fung are termed as: a) Phycomycetes b) Ascomycetes c)
what type of skull does amphibians possess in general?
Mixture of gasoline and air is used as fuel in internal combustion engine. It is highly compressed and then ignited. 1. The process involves four strokes : 2. The f
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