The observations that supported their conclusions include; Bird wing butterflies were found throughout the Malay archipelago, but species differed slightly from island to island.
Bird families clustered geographically: cockatoos in the Malay Archipelago and Australia, macaws and hummingbirds in the America.
Mockingbirds from different Galapagos islands had Subtle, consistent differences.Tortoise from different Galapagos islands have distinct shells
The bony shells of armadillos resembled fossilized shells from the extinct Glyptodon.
The fossilized remains of giant sloths were similar to the smaller, living sloths Darwin encountered. Therefore, the resemblance between species and the variations among distant species led to both Darwin and Wallace to conclude that species change over time.
Here is the answer on the attachment
Answer:
The correct answer is D.
Explanation:
Mutation refers to an alteration in the nucleotide sequence of the genome found in an individual. Mutation can be beneficial, harmful or neutral. A mutation is said to be beneficial when its effects add positively to the survival of the organism. On the other hand, a mutation is described as harmful if the effects is negative or neutral if it has no negative or positive effects.
From the options given in this question, you will notice that all of them have beneficial effects with the exception of option D. A mutation that cause uncontrolled cell division is harmful and can lead to cancer.
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