The study of island biogeography is best said to be based on
a. founder populations.
b. genetic drift.
c. genetic diversity.
d. offspring exhibiting parental genes.

The study of the island biogeography includes the study of species richness, and species composition present on island. The island biogeography aims at establishing and explaining the different factors that affect the diversity of a species of a community. This study is based on the founder populations of the concerned islands.

Hence, the answer is ''Option A - founder populations'

hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called “crystal body” and “lens bodies” were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.

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