Answer:
The correct answer would be b. the environment.
Due to movement of tectonic plates the organisms would experience different environment. For example, different habitat, different food source et cetera.
As an adaptation to the changing environment different organisms would evolve in different species.
For example, in Galapagos island fiches had developed different sizes and shapes of beaks as a result of adaptation towards different environment.
Answer:
Homology is a study of similar characters found in two species because of common ancestry.
Explanation:
1.Morphological homology: Species placed under same taxonomic category exhibit similar anatomical structures.
2.Ontogenetic homology: Species belongs to same taxonomic category embryological similarities
3.Molecular homology: Species show molecular similarities such as DNA,RNA and protein
An example of homology is seen in the skeletal strycture of vertebrates. That is arm of a human,leg of a cat,fin of a whale and wing of a bat.
Answer:
approximately 860 light-years (260 pc) from Earth
