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Q. What are the respective functions of the micronucleus and of the macronucleus in the paramecium?
The macronucleus is properly the cell nucleus it has RNA and DNA and acts as the center of the cellular regulation and control. The micronucleus has reproductive functions and it is related to the conjugation process i.e., sexual reproduction.
Transport of Gases in Blood We know that two types of gas exchanges are constantly occurring in the animal body--one at the inter phase of the respiratory membrane and externa
State the terms - Blastocoel and Blastopore? During the development of embryo, single cells divide and form a hollow ball of cells one cell layer thick. Cavity inside this holl
Animal wastes Large quantities of animal wastes are available in the country but generally they are low in nutrient content with poor feeding value to the animals. However, po
Define Gastrointestinal tract - Excretion of Zinc in Humans? Majority of zinc is lost from the body in faeces. Endogenous zinc in the form of enzymes or metallo-proteins is sec
What is the photoperiodism? The Photoperiodism is the biological response presented by some living beings to their daily time of light exposure (photoperiod).
Diagnostic Evaluation A study of complete blood count (CBC) and blood chemistry mainly uric acid levels, is necessary for dignostic evaluation. Radiologic studies are
Actions of Gastrointestinal hormones Secretin is released under acidic conditions (low pH); digested fat or bile initiates production of pancreatic juice low in enzymes but ri
How are gases exchanged in sponges? The gas exchange in sponges occurs by diffusion from the external to the cells that absorb molecular oxygen and release carbon dioxide.
Give three ways in which a polar bear is adapted to its environment. A polar bear is adapted to its environment by its high ratio of bulk to surface area, a thick water-repelle
Which of the following is a false statement regarding prokaryotic and eukaryotic core promoters? A. The core promoters of eukaryotic genes have more recognition elements for ge
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