Answer;
- P-R interval
Explanation;
-P-R interval is the period of time from the onset of the P wave to the beginning of the QRS complex . This period normally ranges from 0.12 to 0.20 seconds in duration.
-The P-R interval represents the time between the onset of atrial depolarization and the onset of ventricular depolarization. A prolonged PR interval indicates delayed conduction of the sino-atrial, or SA, nodal impulse to the ventricles and is called first-degree AV block. A short PR interval can be seen when the AV node delay is bypassed.
Just as stated and also explained, the correct answer is <span>a long chain of adenine nucleotides is added to the 3' end of mRNA during terminationof transcription. That is the only statement that is true about the polyadenylation mechanism. Hope this is helpful</span>
Answer: Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents
Explanation:
Answer:
<em>The correct option is C) How does allele frequency change between generations?</em>
Explanation:
Hardy and Weinberg brought forward the Hardy- Weinberg theorem or principle to explain that the allele frequencies in a population change due to certain evolutionary events. If these events do not take place, then the allele frequencies of a population will remain the same. Their theorem explains how evolutionary conditions such as mutations, genetic drift, natural selection cause the allele frequency to change in generations of a population. Hence, option C is correct.
Answer:
Abiotic factors are nonliving.
Living things have cells.
Abiotic factors cannot have cells.