B. DNA is heated to separate strands
This is always the first step in a PCR reaction, the Heat acts as Helicase to unwind the double helix.
Oxygen and carbon dioxide move across a cell membrane due to diffusion. Diffusion is a passive process as it requires no energy to move particles down the concentration gradient.
Answer:
the Revenue Act - imposed a tax on goods, such as tea and paper, imported from Britain
the Declaratory Act - established Parliament’s absolute sovereignty over the colonies
the Quartering Act - required colonial assemblies to raise money for British soldiers’ supplies
the Stamp Act - attempted to generate revenues to fund the British military stationed in the colonies
Explanation:
Answer:
Option A, Pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction
Explanation:
Genetics variation allows as organism to evolve in a way to be able to cope up with the existing or changing environmental condition. Now, a Pantala flavescens undergoes sexual reproduction, thus only this creature has the ability among all the given organism to evolve genetically and be able to survive in this environment. All the remaining organisms reproduce asexually and hence there is no variation with in them and hence it would be difficult for these organisms to cope up with changing environment.
Hence, option A is correct.