BIOL 1001 Week 6 Final Exam BIOL1001 Week 6 Final ExamQuestion 1 North America is currently experiencing an unprecedented and rapid loss of species. What is believed to be the main cause? Question 2 W


BIOL 1001 Week 6 Final Exam

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BIOL1001 Week 6 Final ExamQuestion 1

North America is currently experiencing an unprecedented and rapid loss of species. What is believed to be the main cause?

Question 2

Which of the following is not a form of evidence used in understanding the evolutionary relationship among living organisms?

Question 3

During cellular respiration, glucose is metabolized into the low-energy compounds carbon dioxide and water, while the rest of the energy released goes where?

Question 4

Different versions of the same genes are called:

Question 5

During the 19th century, sea otters were  hunted almost to  the point of extinction. When  the number of sea  otters became very low, the ecosystem of kelp bed “forests” also declined. Scientists discovered that the sea otters were predators of sea urchins, which were, in turn, predators of the kelp. When sea otters declined, the sea urchin populations grew, destroying the kelp ecosystem and the many species that depended on it. It was then understood that sea otters were ________ in this ecosystem.

Question 6

A particular Galápagos finch uses the sharp point of its beak to break open small nuts and the strength of its jaws to crack open larger nuts. When a breeding population is blown onto an island with a choice of either very small nuts or very large nuts, members of the group began to specialize, one group eating only very small or very large nuts, depending upon their beaks. Over time, two stable groups developed, each directed towards its specific niche. This is an example of:

Question 7

You are trying to breed a heterozygote Rr rat and want to avoid homozygotes. Which of the following crosses would be your best choice?

Question 8

Driving along a rural two-lane highway, you notice red-winged hawks perched on a tree approximately every mile or so. This pattern continues for quite a few miles. This is an example of a ________ distribution.

Question 9

Gametes fuse together during:

Question 10

Match each term in column 1 with its definition in column 2.

Question    Correct Match

Metastasis         c. When cancerous cells lose contact inhibition and begin to move around the body Translation         d. When protein is assembled from the instructions in the genetic codeAngiogenesis         a. When a tumor attracts and redirects blood vessels to keep it supplied with oxygen and nutrients Biopsy         b. Retrieval and examination of tissue to determine whether cells are cancerous

Question 11

Which of the following is NOT likely to be an example of an evolutionary change in a population?

Question 12

Which of the following is not a way in which fossil evidence supports the theory of common descent? The fossil record:

Question 13

Choose the false statement:

Question 14

Which of the following statements about the greenhouse effect is false?

Question 15

 In pea plants, the allele for purple flowers (P) is dominant to the allele (p) for white flowers. In a cross between a purple- flowered plant and a white-flowered plant, all 73 of the offspring plants had purple flowers. Which of the following most likely describes the cross above?

Question 16

Which of the following facts is used to support the theory of evolution?

Question 17

What aspect of DNA demonstrates the degree of relatedness between organisms? Choose the best answer.

Question 18

The actual carrying capacity of our  planet may be lower than initially calculated because:

Question 19

The flexible characteristics of the cell membrane is referred to as:

Question 20

Which of the following is the proper equation for cell respiration?

Question 21

Which statement is false?

Question 22

Data collected from the major fisheries of the world indicate that the stocks of big fish in the oceans have fallen by 90% since 1950. Ocean going tuna, swordfish, marlin, and large groundfish populations are at about 10% of their previous sizes. Due to industry expansion over the same period of time, the tonnage of fish caught in US fisheries has nearly doubled. The loss of large ocean going fish is most likely due to: (Choose the best answer)

Question 23

Which of the following statements is a testable scientific hypothesis?

Question 24

Consider a cell that underwent mitosis but not cytokinesis. The result would be:

Question 25

Match each term in column 1 with its description in column 2.

Question 26

Hemophilia is an x-linked recessive allele causing a blood disorder. If a man without hemophilia and a woman who is a carrier    of the disease have a daughter, what are the chances that she will have hemophilia?

Question 27

 Table sugar (sucrose) belongs to which category of nutrients?

Question 28

What would happen if a mutation created a new allele that decreased fitness?

Question 29

Which of the following are thought to have evolved from prokaryotic life via endosymbiosis?

Question 30

Diffusion is:

Question 31

Which statement is true?

Question 32

Match each term in column 1 with its example in column 2.

Question 33

Which of the following is at the “bottom” of a trophic pyramid?

Question 34

There have been ________ mass extinctions experienced on a global scale before the current extinction epoch.

Question 35

Match each macromolecule in column 1 with its description in column 2.

Question 36

A cell uses energy to bring a substance inside the cell so that substance’s concentration inside the cell is higher than outside the cell. This is an example of:

Question 37

In a population, which individuals are most likely to survive and reproduce?

Question 38

Approximately how many people were on Earth in 1970, and how many are on Earth today?

Question 39

The most important reason why one can see evolution in a population of mosquitoes more easily than one can see evolution   in a population of squirrels is because mosquitoes:

Question 40

The reactions of cellular respiration occur in the:

Question 41

Which feature is found in both prokaryotic and eukaryotic cells?

Question 42

Which of the following threats to biodiversity today is not significantly related to human activities?

Question 43

Match each term in column 1 with its description in column 2.

Question 44

Which of the following is a false statement about carbon and the carbon cycle?

Question 45

Which two groups’ common ancestor would be found in more superficial strata?

Question 46

What is found when alleles among different human groups are analyzed?

Question 47

Pockets of air from Earth’s ancient atmosphere were frozen in the polar ice caps. Ice core data indicates that in the last 400,000 years, atmospheric CO2 never exceeded ________. Today measurements indicate that the CO2 concentration is________.

Question 48

Which of the following variations could be subject to natural selection?

Question 49

Huntington’s disease is caused by the allele H, which is completely dominant to the normal recessive allele h. Consider a couple where the man has the genotype Hh, and the woman has the genotype hh. What is the chance that their first child will develop Huntington’s disease?

 Question 50

A population of birch trees is present on the side of a mountain and is preyed upon by beetles that burrow into bark. Which  of the following trees is most likely to be the most fit?

Question 51

Match each cell component in column 1 with its description in column 2.Question Correct Match

Question 52

Choose the best answer. The logic of natural selection predicts that a population of organisms will undergo evolution, if, and only if, the following condition(s) exist:

Question 53

The sequence of events in the process of protein synthesis is usually:

Question 54

Evidence for evolution includes:

Question 55

Which of the following is NOT true of chromosomes?

Question 56

Cancer results when:

Question 57

A scientific hypothesis has all of the following features EXCEPT that it is

Question 58

All of the following experiments would be considered an ecological study EXCEPT the effect of a:

Question 59

How does the rate of extinction today compare to the rates in the past?

Question 60

Which of the following is the most direct (or first) result of natural selection on a population?

Question 61

Which of the following is the most important reason for preservation of unused species, such as Mexican teosinte (Zea diploperennis), important in the context of human welfare?

 Question 62

Which of the following is the correct sequence of how  an animal is “built”?

Question 63

Trisomy 13, Trisomy 21, and XXY conditions are:

Question 64

The proteins that catalyze chemical reactions in the body are called:

Question 65

Having a statistically significant result means:

Question 66

During ___________, parent cells produce gametes.

Question 67

Which of the following is not an anthropogenic (human-caused) phenomena threatening biodiversity today?

Question 68

Due to the fact that they are a friendly species that floats when they are killed, North American right whales were considered  the “right whales” to hunt. They were hunted to the brink of extinction. At some point in the beginning of the 20th century,   there were only three reproducing females left. With protection, the population has rebounded to 400 individuals, and all are thought to be descendants of those females. As a result, this species is vulnerable because of: 

Question 69

Consider an experiment in which subjects are given a pill to test its effectiveness on reducing the duration of a cold. Which of the following is the best way to treat the control group? (Choose the best answer.)

Correct       a.

Question 70

The current rapid loss of species is sometimes called the sixth mass extinction. This increase in extinction rate beyond background extinction is thought to be due to:


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