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WorksheetsAKS 8 & 9 Exam Review
Total questions: 20
Worksheet time: 10mins
The images below represent structures that have evolved from a common ancestor. What type of relationship do these structures have?
they are analogous to one another
they are homologous to one another
they are vestigial to one another
they aren't similar in any way shape or form
What evidence from comparative embryology supports that some organisms have evolved from a common ancestor?
Analogous structures observed as organisms develop from birth to death.
Homologous structures between organisms seen upon the birth of organisms.
Homologous structures between organisms as the embryos progress through development.
In the Pedigree chart, how many are carriers of an affected gene
6
2
12
5
According to the Punnett square: B represents the dominant gene for purple color and b represents the recessive gene for white color. Two heterozygous flowers have one offspring. What percent chance does it have for white flowers?
100%
25%
75%
85%
Over many generations, what would the number of well-adapted organisms in a population be expected to do?
increase
decrease
stay the same
increase and then decrease dramatically
Mitosis vs Meiosis: Which is correct?
Mitosis deals with healing body cells when you get a cut. Meiosis deals with sex cells and is how you form a zygote (baby)
Meiosis deals with healing body cells when you get a cut. Mitosis deals with sex cells and is how you form a zygote (baby)
They are the same
How is natural selection in the evolution of long necks in giraffes best explained?
Shorter-necked giraffes were killed by longer-necked giraffes.
Giraffe necks grew longer because of the bone structure of the animal.
Giraffes with longer necks survived because they were better suited to the environment and could reach the top of the trees for food so they reproduced.
What is most likely to happen to the moth populations shown in the picture above?
Light moths will be hunted easily, leading to a decrease in light moth populations.
Light moths will be hunted easily, leading to an increase in light moth populations.
Dark moths will be hunted easily, leading to an increase in dark moth populations.
In humans, the pelvis and femur are involved in walking. Despite the fact modern whales live in water, they contain a pelvis and femur that are common in land dwelling animals. Based on your observation of the whale diagram and your understanding of evidence that supports evolution, what is TRUE about the pelvis and femur found in living whales today?
They are traits acquired by modern whales over time as they adapted to living in water.
They are vestigial structures which are structures that once served a function in the organism's ancestors but no longer function in the modern organism.
They are newly developed structures found in modern whales due to mutations.
What would restrict evolution by natural selection, if a species ONLY reproduced by cloning?
Too few offspring would be produced.
Mutations could not occur.
The offspring would show a lack of variation (they would all be the same).
Darwin's finches originated on the South American continent, and then migrated to islands with different environments. They evolved separately, with great differences in their beak size and shape. How were these beak traits passed on to their offspring?
During their lifetimes, their individual beaks changed shape to adapt and this trait was passed on.
Finches that had more efficient beak shapes survived at a higher rate and were able to pass their trait on to their offspring.
Their beak shapes randomly changed but all were equally effective in obtaining food for survival.
Suppose a certain species of insect lives in the brown dirt on the ground. Some of the insects are bright green in color, and some are brown. Assume there is a natural predator of the insect in the area. What do you expect to happen to the populations of the green and the brown insects over time?
The brown insect population will increase and the green insect population will decrease.
The brown insect population will decrease and the green insect population will increase.
Both insect populations will remain constant over time.
The images below show two separate theories of how organisms evolve. Which is correct about the way LAMARCK sees the evolution of giraffes? What about DARWIN?
Lamarck said Giraffes with short necks over time will stretch their necks to reach the top of the trees. Darwin said you gotta be born with a long neck to survive and reproduce.
Darwin said Giraffes with short necks over time will stretch their necks to reach the top of the trees. Lamarck said you gotta be born with a long neck to survive and reproduce.
Lamarck said the giraffes with short necks will beg the taller giraffes for food and Darwin said the giraffes with longer necks would help out the giraffes with shorter necks
Reproductive cloning is the process of creating a new organism with the exact same DNA as an existing organism using biotechnology. Which of the following questions could you research to study the effect of cloning on the economy?
Does the process of reproductive cloning create new genetic information?
Does reproductive cloning impact the age of the original organism?
Does the cost of the technology required to create a clone exceed the benefit of producing it?
What type of information can fossil records provide, relative to the study of evolution?
The positions of fossils can shed light on when organisms lived, relative to each other.
The positions of fossils can shed light on exactly the year that an organism became extinct.
The fossil record can show exactly how each individual organism died allowing us to record individual evolution.
An advantage of sexual reproduction over asexual reproduction is the concept of genetic variation. Genetic variation (differences) in a population increases the probability of a species's survival when encountering a sudden environmental change. A species with more trait versions is more likely to have a version that is able to survive changes.
Which results in the most genetic variation?
Asexual reproduction results in the most genetic variation because the offspring are exact copies of one another and their parent
Asexual reproduction results in the most genetic variation because the offspring are different from one another and their parent
Sexual reproduction results in the most genetic variation because the offspring are different from their parents and one another
Three species each produce many identical chains of amino acids. We might think that these species have evolved from a common ancestor. Why?
If polypeptides are the same, carbohydrates are the same, therefore, the DNA must be the same.
If polypeptides are the same; the RNA must be very similar therefore, the DNA must be similar.
Polypeptides are produced as the result of photosynthesis; therefore, these organisms evolved from the same ancestral plants.
Natural selection can operate on predator populations as well as on prey. Suppose that over time trees became covered in lichen (making trees lighter) and the number of light moths increased to nearly 100%. What is the most likely consequence for predator populations?
Bird populations will decrease, at least for a while.
Over time, birds with better eyesight will become more common.
Birds may change hunting strategies or seek other sources of food.
All of the above.
DNA Fingerprinting is a great tool at solving crimes and showing paternal and material testing. Based on the picture. Who is the father?
male 1
male 2
male 3
none
DNA fingerprinting does a great job at finding who committed a crime based on their DNA and finding missing parents. Based on the picture, who committed the crime?
suspect 1
suspect 2
suspect 3
none
