Solved by a verified expert:Question 1Which of the following statements represents evidence that supports the theory of common descent but specifically contradicts the hypothesis of separate types?The fossil record provides substantial evidence that humans and chimps share a common ancestor.Radiometric dating methods show that Earth is billions of years old.Many genes found in humans are also found in yeast and they perform the same function in yeast that they do in humans.The fossil record provides copious unequivocal evidence that the species that inhabit Earth have changed dramatically over time.5 points Question 2Which of the following is the best test for the theory of natural selection?Using artificial selection to produce different breeds of dogsExposing a population of rapidly replicating organisms to selection that kills a large percentage over the course of many generations, and then comparing the final generation to a population that was not exposed to the variable.Observing a group of rapidly replicating organisms for many generations, and seeing if there was any change in their genes relative to the original population.Introducing chimpanzees to different social settings in order to see how their behavior can be changed5 points Question 3What is biological evolution?The development of traits that organisms need in order to become more complex.Gene changes in populations over many generations.The change that occurs in individuals as they try to survive in their environment.The steps by which the first life was created on Earth from random molecules.5 points Question 4Which of the following best describes why the process of evolution is easier to study in fruit flies than in birds?Fruit flies have a much shorter generation time than birds.Fruit flies are smaller than birds.Fruit flies have a simpler diet than birds.Fruit flies don’t live as long as birds.5 points Question 5The “tree of life” model gives information about the ________.the selection pressure that led to the divergence of a common ancestor into modern speciesthe precise time period during which organisms livedrelationships among speciesgeographic ranges of certain organisms5 points Question 6Which of the following groupings is the most appropriate, according to the classification system developed by Linnaeus?Group 1: whale, giant fruit bat, giant walking stick (an insect); Group 2: penguin, ostrich, human; Group 3: hummingbird, bee, water strider bugGroup 1: penguin, ostrich, hummingbird; Group 2: water strider bug, giant walking stick (an insect); Group 3: whale, human, giant fruit batGroup 1: hummingbird, ostrich, bee; Group 2: whale, human, penguin; Group 3: giant walking stick (an insect), water strider bug, giant fruit batGroup 1: penguin, water strider bug, whale; Group 2: ostrich, giant walking stick (an insect), human; Group 3: hummingbird, bee, giant fruit bat5 points Question 7Which of the following statements about the gene pool of a species is true?The genes in a species are only part of a universal gene pool that encompasses all species.The gene pool is different in different individuals of the same species.Every individual of a species carries part of the gene pool for that species in its chromosomes.Every individual of a species carries the whole gene pool for that species in its chromosomes.5 points Question 8Which of the following statements best describes the current knowledge about Earth’s biodiversity?It is relatively common for scientists to discover new or fossil organisms that are completely different from other organisms.Most species that have existed on Earth are alive today.There is uncertainty about the diversity within various species.Scientists generally agree that most species have been identified.5 points Question 9How is artificial selection different from natural selection?Artificial selection is the only kind of selection that can occur in a laboratory.Artificial selection is selection by humans rather than the environment.Artificial selection changes traits but not genes.Artificial selection can occur over one or two generations as opposed to many generations.5 points Question 10Which of the following statements is true about a biological race?Normally, biological races will evolve into separate species as time goes on.Biological races can maintain their separate identities even if gene flow occurs frequently between them.Biological races can be classified as more advanced and less advanced varieties.Biological races form, similar to biological species, by restricting gene flow among groups.Natural
Selection
Unit
IV Assessment
Introduction
Scientists
have figured out how to extract DNA from various cells. Extracting DNA is very
important concerning heredity, legal issues, and criminal issues. In this lab,
you will simulate collecting human cells and will conduct various virtual
laboratory techniques in order to extract DNA from a human cell.
Objectives
1.
Explain natural selection.
2.
Analyze the progression of disease mutation
or traits based on the theory of natural selection.
3.
Provide the scientific names of various organisms.
Materials
Computer
with internet access
Directions:
1.
Go to: http://www2.edc.org/weblabs/NaturalSelection/Main.html
2.
Read the information on each slide, and
follow the directions on each slide. For this exploration activity, you only
have to conduct the activity using mice.
3.
On screen 2, click on Mice.
Type
all answers directly on the data sheet.
Select
Save As, and use your last name and student ID as a file name.
Upload
the data sheet as a .doc, .docx, or .rtf file when finished.
Questions
1 – 10 are short answer questions and should be answered in 2 to 3 words or 1
to 2 complete sentences. Each question is worth 3 points for a total of30
points.
1.
What is the scientific name of the common
house mouse? (Make sure you type it correctly.)
2.
What color was most of the mice in the
beginning of the activity?
3.
Form a hypothesis as to what you think will
happen (in reference to the mice and fur color) if no cats are allowed in the
granary?
4.
What actually happened to the number of the
mice?
5.
Why do you think what you observed occurred?
6.
Form a hypothesis as to what you think will
happen (in reference to the mice and fur color) when cats are allowed into the
granary?
7.
Why did the number of yellow mice decrease?
8.
What happened to the number of yellow mice
when the granary was painted yellow?
9.
In order for the different numbers of the
mice to change, did the gene for color mutate depending on the presence of the
cat or color of paint?
10.
Did the individual mice present change their
color based on the presence of the cat or color of paint?
Question
11 is an extended response question and should be at least 200 words. Total: 20 points
Consider
the following scenario. You suddenly realize that you have a population of mice
living in your attic. You do not want to put out traps or poison, so you decide
to get a cat. The cat is fast; however, the cat is not as fast as the very fast
mice. There are a total of 20 mice living in the attic. Of the 20 mice, 10 are
very fast, 5 are medium fast, and 5 are very slow.
11.
A few weeks pass, and there are fewer mice;
however, you still have some mice in the attic. After a few months, it seems
that there are even more mice than there were to begin with. Why do you have
more mice than you did when you first bought the cat? Why do we not see situations
such as this happening in humans as often as we see them in other organisms?
Recent Comments