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Q. Which arthropod class is the mainly diversified animal group of the planet? How can this evolutionary success be explained?
The insects are the animal group with most diversity of species. Almost 750000 insect species are known about 55% of the total already cataloged species of living beings compare with mammals, with no more than 4000 known species. It is calculated however that the number of unknown species of insects may be over 2 million, the insect population on the planet is estimated to be more than 10 quintillion (1000000000000000000) individuals.
The great evolutionary success of insects is due to factors such as: alimentary diversity and small size, making possible the exploration of numerous different ecological niches wings that provided more geographic spread the tracheal respiration that gave them motor agility high reproductive rates among with production of great numbers of descendants.
How is the concept of chromosome related to the concept of the gene? A chromosome is a DNA molecule and chromosome may contain several different genes and as well DNA portions
Atopic individuals are those who are having abnormal high levels of circulating IgE and more than normal number of oesinophils.
comparison between takhtajans and natural classification
Table provides you the classification of the living primates. The primate fossil history dates back to 60 million years i.e. to Paleocene times, more specifically to the cretaceous
Define the term -Aqueous Movement and Outflow There are two movements of the aqueous humour that occur-thermal flow and bulk flow. Thermal flow is, an internal circulation of
The ventricles are separated from each other by the interventricular septum and the atria are separated from each other by the interatrial septum. The interior of the right atrium
Which of the following is true for the sodium-glucose co-transporter? A. The net flux of sodium ions is from a region of high sodium ion concentration to a region of low sodium
What is Oxidation and Reduction? Oxidation and Reduction : Most people are familiar with oxidation as it pertains to the rusting of metals. Oxygen grabs electrons from iron
FUNCTION S OF KIDNEY - 1. Excretion of nitrogenous wastes. 2. Maintenance of water balance or osmoregulation. 3. Acid base balance or regulation of pH.
different types of animals and their respiratory organ
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