An African monkey has a DNA sequence that is 96.66% similar to a human sequence.
ID: 92747 • Letter: A
Question
An African monkey has a DNA sequence that is 96.66% similar to a human sequence. According to the molecular clock, about how long ago did the common ancestor for African monkeys and humans live?
17–20 million years ago
Humans and chimpanzees have a common ancestor that lived approximately 5 million years ago. Scientists have amassed an impressive collection of fossils for ancestors to modern humans and placed these ancestors in chronological order to observe the changes that occurred as these organisms evolved more human-like characteristics. Which lines of evidence provide the basis for stating that humans and chimps have a common ancestor that lived approximately 5 million years ago?
Which description applies to a vestigial structure or trait?
It is a type of homologous trait that is found in diverse organisms.
Which organisms are most closely related?
2.5–3 million years ago 5–6 million years ago 13–16 million years ago17–20 million years ago
Humans and chimpanzees have a common ancestor that lived approximately 5 million years ago. Scientists have amassed an impressive collection of fossils for ancestors to modern humans and placed these ancestors in chronological order to observe the changes that occurred as these organisms evolved more human-like characteristics. Which lines of evidence provide the basis for stating that humans and chimps have a common ancestor that lived approximately 5 million years ago?
homologous structures in humans and chimps DNA sequence similarity changes in bone structure vestigial structures in humansWhich description applies to a vestigial structure or trait?
It is the result of convergent evolution. It represents evidence supporting the common descent and separate types models for modern organisms. It did not have a necessary function in more ancestral organisms, but it does in more evolved organisms.It is a type of homologous trait that is found in diverse organisms.
Which organisms are most closely related?
Bears and raccoons, which are both in the order Carnivora Cougar and lynx, which are both in the family Felidae Bread molds and yeast, which are both in the kingdom Fungi Woodpeckers and warblers, which are both In the class AvesExplanation / Answer
Answer:
1)17–20 million years ago
The last common ancestor for African monkeys and humans look like Gorilla or Chimpanzee, they lived 25 million years ago
2)DNA sequence similarity
Based on the DNA similarity, more than 98% similarity between humans and chimpanzees
3)It represents evidence supporting the common descent and separate types models for modern organisms.
vestigial structure donot have function in both ancestors and moderate organisms, but they are strong and common evidence.
4)Cougar and lynx, which are both in the family Felidae
above both organisms are placed in same family
organisms placed in family are closely linked that in organisms in same order, class and Kingdom
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