Answer: D. Species C most likely diverged from Species A more recently than Species B since Species C has fewer mutations than Species B.
Explanation: The mutations between species A, B and C can be found counting the differences in the nucleotides (letters). So, the mutations in the sequences between Species A and Species B are 8, between Species A and C are 5 mutations and between Species B and C are 9 mutations. Then, we can proposed that species A and C are more close related because the sequences have fewer mutations and this could happen because they diverged more recently, compared to Species B that have more mutations.
Answer:
A - the four cells have identical DNA sequences.
Explanation:
Essentially all cells in a multicellular organism have exactly the same DNA sequence.
The reason the cells look different is because different genes are active in different cells - which gives them their unique shapes, structures and activities!
The digestive system of the earthworm consists of the alimentary canal and the digestive glands. the alimentary canal runs as a straight tube throughout the length of the body from the mouth to anus. the mouth opens into the buccal cavity which occupies the 1 and 2 segments