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Developmental Patterns - Metazoa
The metazoans or Animalia can be divided into two groups on the basis of body symmetry. The bilateral metazoans can be divided into two great assemblages: the Protostomia and the Deuterostomia.
Platyhelminthes, Molluscs, Annelida, Arthropods and a number of minor phyla are classified as Protostomes while Echinodennata, Chordata and at least two minor phyla are included in the deuterostomes. The features used to place animals in these groups are largely developmental.
a) What is biological magnification? b) Describe how DDT as a water pollutant undergoes biological magnification?
Consider Neuron B in the frog central nervous system whose plasma membrane has a previously unknown channel that is selectively conductive to a newly discovered tetravalent anion n
What is the function of glucose-6-phosphatase? a) catalyze removal of one phosphate group from glucose b) catalyze removal of six phosphate groups from glucose c) catalyze the remo
Clinical symptoms of typhoid are: 1. Graded fever which follows an upward ladder pattern. 2. Abdominal pain, cramps and diarrhoea. 3. Anorexia and vomiting. 4. In
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Explain Changes in Mental Development of Infants? There is evidently an increase in the brain size. There is a rapid increase in the number of brain cells in the first 5-6 mont
Segments of Environment: The environment is not a simple distribution of gases but is highly complex and structured. It comprises of four segments: Lithosphere
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