A 50-year-old man has a blood pressure of 140/85 and weighs 200 lb. He reports that he is not feeling well, his EKG has no P-waves, he has a heart rate of 46, and the QRS complexes occur regularly. What is his likely condition?

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#Question id: 12670

#Unit 6. System Physiology – Plant

 Changement  in the physiology or morphology of the individual is a nonpermanent  or  temporary and that can be reversed if the prevailing environmental conditions change is termed as 

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#Question id: 12671

#Unit 6. System Physiology – Plant

When genetic changes in an entire plant population have been fixed over many generations by selective environmental pressure, those changes are referred to as,

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#Question id: 12673

#Unit 10. Ecological Principles

Burning fossil fuels releases oxides of sulphur and nitrogen. Ultimately, these are probably responsible for

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#Question id: 12677

#Unit 10. Ecological Principles

Aquatic ecosystems that are most readily damaged by acid are those that lack an important buffer that dissolves into the runoff after a precipitation event. What is this buffer?

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#Question id: 12703

#Unit 8. Inheritance Biology

In the plants, due to mutation in the mitochondrial genome causing cytoplasmic male sterility can be influenced by the nuclear gene (Rf),  which is dominant over the cytoplasmic mitochondrial genome. If a male sterile plant  is pollinated by the fertile male plant with homozygous (Rf)condition, the progeny obtained in F1 will have

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#Question id: 12705

#Unit 8. Inheritance Biology

In Neurospora crasssa, the mutant exhibit poky phenotype, when a female of  poky strain is crossed with a normal strain acting as a male , all progeny individuals shows poky phenotype . however, the reciprocal cross resulted in all normal progeny. These results can be explained on the basis of