A biologist spent many years researching the rate of evolutionary change in the finch populations of a group of islands. It was
determined that the average beak size (both length and mass) of finches in a certain population increases dramatically during an intense drought between 1981 and 1987. During the drought, there was a reduction in the number of plants producing thin-walled seeds.The biologist discovered that from 1988 to 1993, the average beak size declined to pre-1981 levels. The reversal in beak size from 1988 to 1993 was most likely related to which of the following events
According to the study of finch populations on the island of Daphne Major it has been discovered that evolution occurs by natural selection when the finches' food supply changes during droughts. change in the environment has influenced the opportunities for speculation and diversification of finches. Studies have shown that rapid changes in these finch birds’ beak sizes and shapes are as a result of sudden environmental variations such as drought, or human disturbances. The reversal in beak size is mostly related to the end of the drought,
<span>The types of effects that the surgery had on the rats were documented with their bar-pressing behavior. The differences and changes from the injections effected the rats in certain ways. The location of the injection and which types that was more pleasurable for the rat is something that needs further investigation.</span>
D. There isn't enough information to determine which is the coding strand
Explanation:
In this protein, it would be necessary to observe a start codon (ATG) and one-stop codon (either TAA, TAG, or TGA) which should be separated by six (6) intern codons. It is not observable this nucleotide sequence in any of both DNA strands.
Since it will help the individual live longer, there is a greater chance that it will reproduce than those with lesser favorable traits. Thus the next generation will resemble the parents with the favorable triat more.
