Answer:
Genes.
Explanation:
Genes are present on DNA that are inherited from parents to their offspring. Genes may be defined as the segment of DNA that ultimately form a particular protein product.
The particular trait of an organism is determined by the specific combination of the inherited genes. The genes are nearly same in all the human beings and there mutation can cause observable phenotype traits.
Thus, the correct answer is option (2).
Answer:
Explanation:
This is because the sieve plate interconnected like that help in exchange of substances or transport of substances between element cell and it act as a barrier to prevent the sap from been loss when phloem is damaged or cut. The sieve plates form the sieve tube which is the conducting element of the phloem. It is formed from series of elongated cells that are interconnected by perforations in their walls.
Coal, oil and natural gas carbon dioxide (CO2)
The answer to this is most certainly not A or C, so you can rule those out. If you look at DNA, every persons has different nitrogenous bases (<span>adenine (A),guanine (G), thymine (T), and cytosine (C))
This means the answer to your questions is #2, DNA.
Hope I helped you!</span>
