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Q. How is excretion done in fishes?
Fishes have a pair of kidneys that filtrate the blood, bony fishes excrete nitrogen as ammonia NH3 (they are ammoniotelic) and cartilaginous fishes excrete urea as nitrogen waste (they are ureotelic like adult amphibians and mammals).
EXCRETOR Y ORGANS In protozoa through plasmalemma by diffusion. Contractile vacuole present for osmoregulation (absent in parasitic and marine protozoa). In porifera and
BIOLOGY IN ANCIENT INDIA - L A T E STONE AGE [10,000 - 20, 000 B.C) Man first cultivated wheat, barley, lentils & peas. In India rice was first cultivated at Meherga
Compare and contrast enantiomers, epimers, and anomers, specifically in relation to sugars.
Classes of Life Form The five life form classes are: Phanerophytes, Chamaephytes, Hemicryptophytes, Cryptophytes, and Therophytes.
Q What are some examples of tissues and organs where mitosis is more frequent, less frequent or practically absent? Generally in vertebrates mitosis is more frequent in tissues
Biologists established that new cells Consequent to this doctrine, biologists established that new cells are formed by cell division and by the end of the nineteenth century, t
Q What is the logical order in which the concepts of molecules, atoms, cells... up to biosphere are associated? Atoms form molecules that form cells that form tissues that form
What is the objective of genesis of coronary artery diseases and risk factors ? After reading this unit, you should be able to: Understand the genesis of CAD; 1 learns about th
Define Function of the Iron Uptake by Cells? Iron has several vital functions in the body. It serves as a carrier of oxygen to the tissues from the lungs by red blood cell haem
Given an individual who is heterozygous at 6 loci, how many different gametic Genotypes are possible? A. 36 B. 12 C. 32 D. 48 E. 64
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