Answer:
mutations to homologous genetic loci
Explanation:
Phylogenetic tree, which is a diagrammatic representation of evolutionary relationship among organisms, can be constructed from evidence from molecular systematic with regard to the similarities in the mutations to homologous genes.
Homologous genes are genes that are inherited by two species from a common ancestor having similar DNA sequence. An example of homologous gene is Orthologous gene, which is said to have be brought about by speciation.
Stomata close is the best option
Sugars pass from cell to cell in the leaf starting in the symplast of the mesophyll; they move through the symplast or apoplast of other cells and finally pass into the symplast of the sieve tube element
In symplastic pathway the sugar will move through the cytoplasm of the cell and pass on to the other cell through the plasmodesmata.
In apoplastic pathway the sugar will move through the cell wall and intercellular spaces and does not cross the cell membrane.
When the sugar are synthesized by the leaves first it will move through the symplast of the mesophyll cells. Then sugar will be travelling either through symplastic or apoplastic pathway in other cells and pass through the sieve tube elements in symplastic pathway
To learn more about symplast here
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It took 2 years since the population got doubled. So you have to double the year too.
Hello,
I believe that the answer is A, Plant cells
