Answer:
Option B, After Dried
Explanation:
All biological fluids such as blood, semen, saliva etc. are not collected from the crime scene when they are wet or moist. Since, we all aware that all human beings are genetically distinct hence if these fluids are tested after they dry up, no specific impact can occur on the sample and the test result. Also collecting dry sample is much easy and comfortable. The dried samples undergo DNA analysis there by producing a genetic profile which is specific to individuals
Hence, option A is correct
Answer:
e. Because gene flow between populations prevents genetic divergence in sympatry.
Explanation:
Speciation requires genetic divergence between populations of a species to isolate them reproductively. however, when present in the same habitat, gene flow between populations of a species does not allow their reproductive isolation and thereby, prevents the formation of new species. These populations need strong episodes of disruptive selection for their reproductive isolation.
On the other hand, two geographically isolated populations can not interbreed and thus, there is no gene flow between them leading to their genetic divergence and speciation. So, allopatric speciation is more common than sympatric one.
<span>The hyphal walls are made of a substance called ... They have cells walls made of chitin, reproductive cells i think its true</span>
Coronary vessels supply blood to heart muscles ..blockage in them will cause hypoxia in heart muscles which leads to heart attack
This process by which an unexploited niche is explored by organisms and then tries to thrive is succession. In this case, primary succession is observed. Thank you for your question. Please don't hesitate to ask in Brainly your queries.
