The answer is B:
A chipmunk takes shelter in and oak tree and is protected from predators, and in return disperses seed around the area
Asexual reproduction limits the spread of harmful characteristics because the offspring is only inheriting from one parent.
A predator prefers one phenotype to another. Eventually the # in the non prey phenotype will survive to reproduce.
The question is incomplete as it does not have the options which are:
a) DNA
b) AGCT
c) PCR
d) SNP
Answer:
PCR (polymerase chain reaction)
Explanation:
The polymerase chain reaction is the technique which replicates and produces multiple copies of the DNA molecule artificially in a short period of time.
The PCR technique employs a variety of enzymes and all the prerequisites which are required in the DNA replication in vivo conditions.
In the given question, if the genome of the mummy has to sequence then after the collection of samples from the bones, the DNA has to replicate through the process of PCR. The samples from the different bone structures can be compared and analysed and a complete genome sequence can be analysed.
Thus, PCR is correct.
Answer:
Fish, water pH and the water itself
Explanation:
Fish affect the freshwater system since they live and excrete their waste in the water
pH levels of water should not be below 6 or above 8 for a healthy drink
Also, algae affects the freshwater system