Sub-divisions of phylum Chordata
Describe the two main sub-divisions of phylum Chordata?
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The phylum Chordata is classified into protochordates (or cephalochordates and urochordates and) and vertebrates (that is, cyclostomes, amphibians, fishes, reptiles, mammals and birds).
Whether fecundation in amphibians is external or internal? Also explain whether amphibians are evolutionarily proximal to fishes or to reptiles?
Besides age composition, there are also changes occurring in gender composition. Women have been entering the workforce in record numbers over last four decades. By 1975 they accounted for approximately 40 percent of the total and at the turn of the century women make up about half the workforce.
Despite comprising a higher biodiversity why, is the Amazon Rainforest under risk of desertification?
Determinates of organizational structure Some organizations have different characteristics and requirements, it would not be possible to identify an ideal structure
Why can the amnion also be taken as an adaptation to terrestrial life?
What is an instance of a condition in which the neuron cell body is situated in a part of body and its axonal terminal portion is in a further distant part of body? Why does this occur?
Write some function of vitamin E? Name the foods, in which it can be found?
What is the portion of the female reproductive system where fecundation happens?
Define lymphocytes in short?
Write down the differentiation between natural and essential amino acids?
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