During the successional process generation of community through the short time period successional process as well as long time successional process;

a) During short time period evolve pioneer community from the climax community

b) During short time period generation of the microbial community 

c) During long time period generation of end community (forest) from the pioneer community

d) During long time period generation of the microbial community 

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#Question id: 5333

#Human Biology

Phenylketonuria a metabolic disease in human is caused by recessive allele k. if two heterozygous carriers of allele marry and have three children, what is the chance that all children will be affected?

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#Question id: 10977

#Human Biology

A 60-year-old man’s EKG shows that he has an R-R interval of 0.55 sec. Which of the following best explains his condition?

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#Question id: 1548

#Human Biology

B-cell survival in the follicle is dependent on?

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#Question id: 5334

#Human Biology

The way sex determination in birds, Male birds have two Z chromosomes, and females have Z and W. which of the following is not possible during inheritance?

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#Question id: 10978

#Human Biology

Which of the following events occurs at the end of the period of ventricular ejection?

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#Question id: 10979

#Human Biology

Which of the following conditions at the A-V node will cause a decrease in heart rate?