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How are grasslands classified?
Grasslands might be classified into steppes and savannahs. In the steppes the prevailing vegetation is grass, as in the pampas of South America and in the prairies of North America. The fauna is mostly formed by herbivores, as rodents and ungulates. The savannahs present small trees, for instance in the Brazilian cerrado or the African savannahs. The fauna is diverse; in the Brazilian cerrado there are animals as ostriches, lizards, armadillos, jaguars, etc., and many types of insects; the African savannahs are the home of large herbivores and carnivores, as zebras, antelopes, giraffes, lions and leopards.
Biomes - Image Diversity: savannah
Hormone s . The thyroid gland secretes following hormones. Thyroxine (tetraiodothyronine or T 4 )' and tri-iodothyronine or T 3 are secreted by the thyroid follicular cells.
Excretion in Protozoans Excretion of metabolic wastes is dope almost exclusively by diffusion. All protozoans are ammonotelic i.e., the end product of their nitrogen metabolis
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entamoeba histolyca and Giardia lambia were isolated
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what is persons subunit
Which one of the following statements about human sperm is correct? 1. Acrosome has a conical pointed structure used for piercing and penetrating the egg, resulting in fertilis
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