A dicot seed is preferred over a monocot seed to observe seed structure because? a.Distinct embryonic axis or b.Proper sepration of cotyldeons
To determine why a dicot seed is preferred over a monocot seed to observe seed structure, let's analyze the two given options:
a. Distinct embryonic axis: Dicot seeds typically have a more distinct embryonic axis compared to monocot seeds. The embryonic axis refers to the central part of the seed where the primary root (radicle) and shoot (plumule) are located. In dicot seeds, this axis is more easily identifiable due to the presence of two cotyledons (seed leaves) which are attached to the embryonic axis. On the other hand, monocot seeds usually have a single cotyledon that is difficult to distinguish from the rest of the tissues within the seed.
b. Proper separation of cotyledons: Dicot seeds have two cotyledons that provide a clear separation between them, making it easier to observe their structure. In contrast, monocot seeds have a single cotyledon that can be challenging to separate from the endosperm or other internal structures. This can make it more complicated to study the cotyledon's characteristics and their relationship with the rest of the seed.
Therefore, the correct answer is "a. Distinct embryonic axis." The presence of two cotyledons and a clear embryonic axis in dicot seeds makes them more preferable for observing seed structures compared to monocot seeds.