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Q. What is the major evolutionary innovation presented by nematodes? What is the benefits of that innovation?
The major evolutionary innovation of nematodes is the complete digestive system, with two openings (anus and mouth).
Since the defecation and the ingestion processes can occur in different extremities of the digestive tube, beings with a complete digestive system have the benefit of ingesting new food while residuals of already eaten food are still inside the body and not yet eliminated.
Run off Some of the rainfall is soaked into the soil and excess water flows over the land surface along the natural slope of the area. Run off is the main source of water for l
notes on urea
Kinds of Hermaphroditism Depending upon the timing of maturity of the gonads, hermaphroditism can be of two types 1. Simultaneous hermaphroditism . Both male and female g
Arteries - Circulation The arteries deliver blood from the heart. Figure shows the structure of arteries and the different layers of the vessel wall. The thick walls of these
What is the life cycle of the hookworms? Adult hookworms within the human intestine release eggs that are eliminated with the human feces. Under adequate conditions of moisture
Explain Water Holding or Hydration Capacity (WHC) and Viscosity? WHC refers to the 'ability of fibre to bind water', just as dry sponge does when soaked in water. WHC of the fi
Q. Why are pteridophytes better adapted to dry land than bryophytes? Were pteridophytes always less abundant than phanerogamic plants? Although pteridophytes and bryophyt
What is Excessive Fat Intake? Although minimum amount of fat is essential as calculated above but upper limit of fat should be drawn due to its link with an increased risk of d
Briefly explain why cutting a flatworm into pieces would not kill it
What is the Importance of vitamin b2 As a prosthetic group of the flavin enzymes, vitamin B 2 is involved in the reactions of almost all nutrients of plants and animals. They
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