Gas bladder or air bladder is a gas filled sac present in fishes. It helps in maintaining buoyancy. Thus, it helps fishes to ascend or descend and stay in the water current.
Which of the following is not correct?
(a) Robert Brown discovered the cell.
(b) Schleiden and Schwann formulated the cell theory.
(c) Virchow explained that cells are formed from pre-existing cells.
(d) A unicellular organism carries out its life activities within a single cell.
Discuss the main steps in the digestion of proteins as the food passes through different parts of the alimentary canal.
What are the characteristics of prokaryotic cells?
What is meant by double circulation? What is its significance?
Describe the digestive role of chymotrypsin. What two other digestive enzymes of the same category are secreted by its source gland?
Please explain in brief.
Air bladders is used as a lung in certain grops of fishes.
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the answer can be still detiled😋😋😋😋
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