B. Cell membrane
Remember cell membrane is the structure aka “wall of the house” is the clear boundary between the cells internal and external environments:))
Hope this helps
Attached is the table related to this exercise that I found on the internet.
According to the table, the division with the largest sample was the division II.
Summing up all the individuals from the different divisions we have:
Division I - 22
Division II - 27
Division III - 21
The sample from division II is the largest.
A dichotomous key is defined as a biological tool for identifying unknown organisms to a particular taxonomic level. It is constructed with many levels and series of couplets.
So, by observing the given dichotomous key, it is concluded that the correct answer is Option A- Organism X and Z have at least one observable trait in common in this dichotomous key.
The monocotyledons (monocots) and the dicotyledons (dicots<span>).</span>
C they are always found in homologous pairs