Explain the excretion procedure in fishes
Explain the excretion procedure in fishes?
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Fishes contain a pair of kidneys which filtrate the blood. Bony fishes excrete nitrogen as ammonia, NH3, (that is, they are ammoniotelic) and cartilaginous fishes excrete urea as nitrogen waste (that is, they are ureotelic, such as mammals and adult amphibians).
Give a brief explanation of cytoskeleton. And also write down its main constituents that are in animal cells?
PRINCE2 Processes:A) Directing the project: conducted by senior managers/decision makers define the need for the project and the resources to be allocated B) Q : Difference between economic profit and Normal 0 false false
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Allergens: The Allergens are non-parasitic antigens. Allergens are capable of stimulating hypersensitive reactions in allergy circumstances in a human being.
Explain how do calcium ions participate in muscle contraction? Why do both muscle contraction and muscle relaxation spend the energy?
What is the fluid which fills the nucleus termed?
Name the two groups of defense mechanisms of the body against foreign or injurious agents? Explain the difference among them?
How reptiles and birds are different regarding the maintenance of the body temperature? Whether birds are rare in Polar Regions?
What energy pyramids represent?
Illustrate what is an adjuvant?
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