The answer to this question is 1.DNA because RNA is single stranded.
Answer:
i dont understand what do you mean. theres a spelling mistake
Explanation:
Answer: PCR allows us to target and amplify one specific segment of DNA that is a few hundred base pairs in length out a complete genome of over 3 billion base pairs.
Explanation:
Answer:
Option B, It increases the probability that some offspring will survive long enough to reproduce.
Explanation:
The larger the number of eggs, the larger will be the available opportunities for at least few of the youngsters to develop into adult being and survive till the age of fertility. This shall enhance the chances of producing new offspring before the older one dies thereby replacing them without changing the population number and further producing offspring that can survive to replace them and continue this chain.
Hence, option B is correct
Answer:
These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air). Each of these four spheres can be further divided into sub-spheres.
