Define population density
Describe briefly the term population density?
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Population density is relation between the number of individuals of the population and area or volume they inhabit. For instance, in 2001 human population density of United States (in accordance with the World Bank) was 29,71 citizens per square kilometer and China had a population density of 135,41 humans for each square kilometer.
Name the structures which compose the human vision apparatus? Answer: The organs of human visual apparatus are the eyes, optical nerves and the visual regions of the
Write the applications of precipitation reactions?
Specify the cells which are generated within the first stage of embryonic development called?
Name the chromosome region where centromere is situated. How chromosomes categorized in relation to the situation of their centromere?
Concerning the existence of nucleus what is the basic difference among animal and bacterial cells?
Describe the term cotyledons?
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Write down the trends of gametophyte in evolution of the plants?
Explain about the classes into which mollusc are divided? Provide some of the representing beings of each class?
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