Download SBI3U Final Exam Review Your Exam will include: Section Marks I

SBI3U Final Exam Review
Your Exam will include:
Section
Marks
I – Multiple Choice
30
II – Matching
15
III – Diagrams
22
IV – Short Answers
33
V – Problem Solving
26
The following questions will help you prepare for the final. That is not to say that every question will
be taken directly from this review. In order to complete the review it is suggested to reference your
notes, as well as past unit reviews and PowerPoint presentations that are posted on the wiki.
BEFORE asking for help on a question, please look to these resources first.
1. Explain how a change in the weather conditions of an ecosystem can impact the food sources of the
ecosystem.
2. Explain the difference between heterotrophs and autotrophs?
3. Explain the difference between Heterotrophs and Autotrophs
4. Explain what occurs during each of the stages of mitosis and meiosis. Be specific.
5. In sentence form, link the terms chromosomes, chromatid, and centromere together
6. Why must a virus enter a host cell in order to reproduce itself?
7. Explain the difference between co-dominance and incomplete dominance
8. You watch the TV program “The Simpsons.” Homer is bald, Marge has blue hair, and their kids (Bart,
Lisa and Maggie) have yellow hair. If blue hair colour is recessive to yellow hair colour, what colour
of hair did Homer have before he lost it all? What are Homer’s genotypes? Explain your choice and
demonstrate it with a Punnett Square
9. Using the information from Question #7, what is the probability of a fourth child produced by Marge
and Homer having yellow hair? Show your answer using a Punnett Square.
10. Use the following dichotomous key to classify the six creatures below. Write the family names
for each creature below their photo.
Family ______________
Family ______________
Family _______________
Family ______________
Family ______________
Family _______________
1. A. The creature has feet………………………………………………………..Go to 2.
B. The creature does not have feet……………………………………..…… Go to 4.
2. A. The creature has two eyes…………………………………………….….. Go to 3.
B. The creature has more than two eyes…………………………………….Family Duckidae.
3. A. The creature has two antennae and no ears……………………………..Family Blobidae.
B. The creature has two ears and no antennae………………..……………Family Allfeetidae.
4. A. The creature has 8 exposed teeth………………………………………...Family Scaredidae.
B. The creature has no exposed teeth………………………………………Go to 5.
5. A. The creature has 8 tentacles and exhibits radial symmetry……………Family Unicornidae.
B. The creature does not have 8 tentacles and radial symmetry…………Family Dragonidae.
11. A woman with Blood Type A whose father was Blood Type B marries a man with Blood Type B whose
mother was Blood Type A. What are the genotype ratios and possible phenotype ratios of their
offspring?
12. Colour-blindness is an X-linked recessive trait. Tasting is an autosomal trait in which tasting (T) is
dominant over non-tasting. A heterozygous tasting colour-blind male is married to a non-tasting female
that is a carrier for colour-blindness. What is the probability that the couple will have a non-tasting
colour-blind son? Show your work using a Punnett Square.
13. Shown below is a pedigree chart for the inheritance of achondroplasia (ay-kon-druh-play-zhuh), a form
of dwarfism. Dark circles or squares indicate individuals with achondroplasia. Examine the pedigree
chart, and answer the following questions.
A
C
B
D
E
F
G
(a) Is the gene that causes this form of dwarfism a recessive or dominant trait? How do you know?
Provide one reason
(b) Using T to represent the dominant allele and t to represent the recessive allele, write the genotype(s)
of the indicated individuals.
 Individual D
 Individual E
 Individual G
(c) Can Individual A be homozygous? Explain.
14. Explain the terms:
a. Genetic diversity
b. Species diversity
c. Ecosystem diversity
15. What are transitional fossils, and how does the discovery of them help us understand the evolutionary
events of the past?
16. Compare and contras bottleneck effect and founder’s effect.
17. Explain the following theories, and state who came up with them.
a) Catastrophism b) Uniformitarianism c) Inheritance of acquired characteristics
18. In this unit we learned about Natural selection. We learned there are three types of natural selection.
Stabilizing selection, Directional selection and Disruptive selection. Give a brief description of each
that includes an example and a population graph.
19. What are the tree main functions of the circulatory system?
20. Compare and contras open and closed circulatory systems
21. Describe how a blood cell travels through Pulmonary and Systemic circulation. Start as a deoxygenated
blood cell at a muscle cell in the leg. End back at the same muscle cell in the leg as a oxygenated blood
cell.
21. Label the diagram
22. Label the diagram
23. Compare and contrast Open VS Closed Cardiovascular Systems
Open
Closed
24. Compare and contrast the Right Side of heart Vs. Left side of heart
Right
Left
25. Compare and Contras Arteries, Veins and Capillaries
26. What is a Double Circulatory System? Include pulmonary circulation, Systemic circulation, and Cardiac
circulation.
27. Compare and contrast Phloem and Xylem.
Phloem
Xylem
29. Compare and contrast sexual reproduction in seedless and seeded plants.
Sexual reproduction in seedless plants
Sexual reproduction in seeded plants
31. Label the diagram
32. Label the diagram