Question

Me ayudan porfa es para las 11 que tengo que mandar son preguntas
____1. What did Charles Darwin observe in finch populations of the Galapagos Islands off the coast of South America?
a. different species on different islands
b. identical species on all the islands
c. all species on one of the islands
d. the same species as North America
____2. The diversity of species seen on the Galapagos Islands is mostly due to:
a. gene manipulation by scientists
b. natural selection
c. gene changes resulting from mitotic cell division
d. selective breeding
____3. On the Galápagos Islands, Charles Darwin observed:
a. completely unrelated species on each of the islands.
b. species exactly like those found in South America.
c. species similar to mainland South American species.
d. species completely unrelated to those found in South America.
____4. Different finch species have beaks of different shapes and sizes. What do these beak differences tell us?
a. Differences in beak shapes tell us that all the finches eat the same type of food.
b. Different finch beak shapes are evidence that all Galápagos finches shared a common ancestor a long time ago.
c. Different finch beak shapes are evidence that over time, finch species adapted to different food sources on the islands.
d. Different finch beak shapes are evidence that several finch species with different beak shapes came to the Galápagos Islands from the mainland.
____5. Genetic evidence supports which of the following explanations for the presence of 13 different finch species on the Galápagos Islands?
a. Each of the 13 species was founded by the independent migration of a different species from the mainland to the islands.
b. Many years ago, more than 13 different species of birds migrated to the islands. The current 13 finch species are the only species that survived.
c. It's not clear based on the DNA evidence whether the 13 species arose from a single migration of one species or multiple migrations of several species from the mainland to the islands.
d. Many years ago, a small population of a single finch species migrated to the islands and evolved into the current 13 species.
____6. The species of finches that Charles Darwin found on different Galápagos Islands varied in certain adaptations. One of the most significant was:
a. size of eggs c. color of feathers
b. shape of beaks d. location of nests
____7. Among Darwin’s finches, stabilizing selection would prevent evolutionary change if:
a. birds with average beaks were best able to survive and reproduce.
b. birds with unusually deep beaks were most likely to survive
c. the correlation between parents and offspring were weak.
d. birds with unusually shallow beaks were most likely to survive
____8. Darwin claimed that the differences in the beak formation between the variety of finches species found on the Galapagos Islands was related to their:
a. time of reproduction c. genetic body size
b. food source d. migration pattern

Answer 1

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