Which of the following observations provide evidence for evolution? (List all that apply.)
a. Monkey and trilobite fossils are never found in the same fossil beds.
b. Athletic training can produce an increase in muscle mass.
c. DNA sequences of genes shared by various species vary in accordance with predictions about how closely related those species are.
d. The genetic code is nearly universal.
e. Species whose adult forms look very different may have similar features in embryonic life.
Adv.
Trilobites are a kind of arthropods, which became extinct around million years ago. Monkey and trilobite fossils were never found in the same fossil bed because trilobites are ancient organisms and monkeys did not exist during the age of trilobites. It is clear that trilobites and monkeys represent different generations. Thus, this serves as a proof for evolution.
Hence, the correct option is (a). Monkey and trilobite fossils are never found in the same fossil beds.
During the formulation of his theory of evolution by natural selection, Darwin brought together ideas and results from several disciplines. Match the person with the phrase that describes his work.
| a. Lyell | Evidence of extinction of species |
| b. Wallace | One form of organism can evolve into another |
| c. Lamarck | Natural selection as a mechanism underlying evolution |
| d. Cuvier | Geological forces observable today caused changes in Earth |