Distantly related organisms may be similar if they live in Similar environments
The rise of the bright colored fish is an example of variation in the natural selection process of evolution discovered by Darwin and Wallace. All species of living organisms develop varieties. If the variety is favorable to the environmental conditions, then it will thrive and in that way be selected to survive and help propogate the species. The accidental mixing of the waters between the two lakes is an example of how environmental conditions can change in nature and thus effect the survival of the varieties. If the bright colored fish are then living in the same lake as the dark colored fish then they will probably effectively compete for survival in the Lake B according to the above mechanism.
Answer:
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<span>a. Scientists use radiometric dating to determine the relative age of a new fossil.
Example:
</span><span>Glossopteris fossils are the most reoccurring fossils in most land masses. In Alfred Wegener’s Continental drift theory which he claims that the continents of the earth may have relocated themselves from their former positions. Which when you synthesize the whole continents you’ll have the “all-earth” or so-called Pangea. The super continent as Wegener’s continental drift theory suggests. These Glossopteris is event in many places mainly in Africa, South America, Australia, India, and Antarctica. That in the paleontological perspective can assert his theory that these organisms have been roaming and surviving all over this one super continent and were dispersed in, that's why they can be found in many places as mentioned.</span>
