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Unit 7.2 Evolution & Classification Test

Last updated over 1 year ago

20 questions

LT 7.1 Natural Selection

1

The information below was printed on a calendar of important events in the field of biology.

1859
Darwin Publishes
On the Origin of Species by Natural Selection

This information is most closely associated with

1

The theory of biological evolution includes the concept that

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The extremes of dry and wet weather of the Galapagos Islands cause the food supply to constantly change. During dry years, the food is mainly large, hard seeds, and finches with large beaks are found in greater numbers.
Which statement best explains this observation?

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Which statement describes an effect of natural selection on a species?

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In a certain species of insect, some individuals have flattened white disks on their bodies that protrude and interlock, resembling an orchid flower. This adaptation provides the insect with a better opportunity to capture its prey. If environmental conditions remain unchanged, it is most likely that, in future generations, the proportion of the population with this adaptation will

LT 7.2 Evidences of Evolution

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In the early stages of development, the embryos of fish, amphibians, reptiles, birds and mammals resemble one another. This observation suggests that these animals may have

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Blood proteins in horses are chemically similar to blood proteins in monkeys. This similarity suggests that horses and monkeys

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Evidence that best supports the theory of biological evolution was obtained from the

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When examining the skeleton of whales, scientists identified a bone that resembles the pelvic bone found in land dwelling mammals. Whales, however, do not have legs and thus do not use this pelvic bone. This is an example of:

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The hands of three primates are shown below.

In addition to having similar external appearances, the primates’ hands have similar bone structures. Which of the following conclusions is best supported by the similarity of these primates’ hands?

LT 7.3 Cladograms and Phylogenetics

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In the diagram shown, B, C, and D represent organisms that exist in the present time and show a striking similarity to each other in their bone structure. In the diagram, letter A most likely represents

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Base your answer(s) to the following question(s) on the diagram below and on your knowledge of biology. The diagram shows the evolutionary relationships of
some organisms.

Which two organisms would most likely synthesize the most similar enzymes?

1

Base your answer to the following question on the information below and on your knowledge of biology

Which evolutionary tree best represents the information in the chart?

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The data table below shows the number of amino acid differences in the hemoglobin molecules of several species compared with amino acids in the hemoglobin of humans.

Based on the information in the data table, write the names of the organisms from the table in their correct positions on the evolutionary tree below

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Scientists analyzed the genetic sequences of the protein cytochrome c of several animal species. The numbers in the table identify how many amino acids in the protein cytochrome c of a given species differ from those of the other studied species.

On the basis of their cytochrome c differences, which of the following pairs of animals are LEAST closely related to each other?

LT 7.4 Domains and Kingdoms

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The dichotomous key below provides a way to classify some animals into groups according to their physical characteristics.

The key can be used to classify each of the four animals represented below.

Which row in the chart shows the correct classification group for each animal?

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All organisms in the kingdoms Protista, Plantae, Fungi, and Animalia are

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The organism Quercus phellos is a member of the genus

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Mushrooms are a type of fungus. What characteristic of fungi makes them different from plants?

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A scientist is studying two microscopic organisms. Both organisms are single celled and have no defined, membrane bound nucleus. Organism A only inhabits the harsh climate of sulfurous hot springs and organism B are commonly encountered in everyday human life. Which kingdoms would these organisms best be classified in?