This term refers to a process of change in organisms over ...



Name: Date:

Pre-IB Biology Mr. Donato

Evolution Review Sheet

1. This term refers to a process of change in organisms over a period of time: . It states that present day organisms evolved from earlier, distinctively different organisms.

2. This term refers to when organisms with favorable variations reproduce more successfully than organisms with less favorable variations:

3. Organisms which share similar physical and molecular (genetic) characteristics have probably come from a .

4. Characteristics of a species that make its members better able to live and reproduce in their environment are known as

1. favorable adaptations 3. homologous structures

2. abiotic factors 4. biotic factors

5. Describe the first organisms on the Earth.

6. Many flies were present in the biology classroom. The teacher sprayed a pesticide to kill the flies. Unfortunately, some of the flies were still alive.

a. Why are some flies still alive?

b. If the pesticide was sprayed again, would it be more or less effective? Explain your reasoning.

7. What does the diagram to the left suggest?

1. all develop at the same rate

2. evolved from different animals that appeared on Earth at the same time

3. all develop internally and rely on nutrients supplied by the mother

4. may have an evolutionary relationship, common ancestry

8. Provide one explanation why antibiotics do not work as well as they used to.

9. In order for evolution to take place there must be variation within a population. This variation is usually due to a mutation in the genes. In what organelle are genes located?

10. If a species lacks a good adaptation, what will most likely happen to it if an environmental change takes place?

With medical advances, the US has been able to keep many bacterial infections at bay with the use of antibiotics. Yearly counts providing information on MRSA antibiotic resistance are represented in the graph to the right. 

11. Which statement best explains why some MRSA bacteria survive the antibiotics?

1. The weather in 2001 was probably warmer than normal.

2. In the last 20 years, fewer people wash their hands so they are more likely to get sick.

3. Environmental factors varied slightly as the years progressed.

4. Natural variation existed within the population.

12. What is the most probable reason for the decreased effectiveness of the antibiotics?

1. Antibiotics caused mutations in MRSA, which resulted in immunity.

2. Antibiotics were only used once.

3. MRSA bacteria resistant to antibiotics lived and reproduced.

4. Antibiotics chemically reacted with the DNA of the MRSA bacteria

13. Which species would be most likely to survive if there is a change in the environment? Why?

14. In terms of evolution, why is it “bad” to undergo asexual reproduction?

15. In order to have an effect on the evolution of a population, in what cells does a mutation need to be present in?

16. Use the following diagrams to answer the questions below.

[pic]

a. List one organism that is extinct.

b. List one organism that is currently living.

c. Which organism is the common ancestor for all of the other organisms?

d. Which two species are most closely related – Q and R or Q and P?

Explain your reasoning.

17. The Abert and Kaibab squirrels are closely related. The Abert squirrel is found on the South Rim of the Grand Canyon, while the Kaibab squirrel is found on the North Rim. Fur color is the only difference that can be observed between the species. An illustration of these two species is shown below.

Which statement best explains how the differences between these two species came about?

(1) Different adaptations developed because the abert squirrel preferred hotter environments.

(2) As the squirrels adapted to different environments, differences in appearance evolved.

(3) The squirrels evolved differently to prevent overpopulation of the habitat.

(4) The squirrels evolved differently because their ancestors were trying to avoid competition.

18. Harmful characteristics generally in frequency because they have a low survival value for the species.

19. Circle the correct terms to complete the statement. Extinction is most likely to occur when environment conditions (change, remain the same) and the majority of individual within a population (lack, possess) adaptive traits to survive and reproduce.

Know how to analyze the diagram below (similar to state lab)

[pic]

Taxonomy Multiple Choice: For each question choose the best answer and place it on the line to the left of the question.

___1. Which of the following is not a reason to classify organisms?

          a. to learn how they are related to other organisms.

          b. to help make sense of our world.

          c. to learn more about the organisms. .

          d. to learn their names in other languages.     

___2. Which best defines classification?

          a. the time between fertilization and birth.

          b. the sorting of organisms into groups based on similarities and

differences.

          c. the process by which animals get their food.

          d. the process by which DNA makes a copy of itself.

____3. Where in our world does classification occur?

          a. at the school library.

          b. at the grocery store.

          c. in a scientific lab.

          d. all of the above.

____4. Name the scientist who developed the modern system of classification.

          a. Charles Darwin

          b. Isaac Newton

          c. Carolus Linneaus

          d. Albert Einstein

____5. Which is the largest grouping of related organisms?

          a. family

          b. species

          c. phylum

          d. kingdom

____6. Which is the smallest group of related organisms?

         a. family

         b. species

         c. phylum

         d. kingdom

____7. Which scientific name is written correctly?

        a. Canis familiaris

        b. Canis familiaris

        c. Canis Familiaris

        d. Canis familiaris

____8. Which is the proper order of classification?

        a. Family, Order, Species, Genus, Kingdom, Class, Phylum

        b. Order, Species, Kingdom, Phylum, Family, Class, Genus

        c. Kingdom, Phylum, Class, Order, Family, Genus, Species

        d. Species, Family, Order, Phylum, Kingdom, Class, Genus

____9. What parts of an organism's classification make up their scientific name?

       a. Kingdom and phylum

       b. Order and class

       c. Genus and species

       d. Family and class

____10. The study of classifying or grouping organisms, both living and fossils is

          called:

         a. organization

         b. taxonomy

         c. genetics

         d. biology

____11. A ___________________ is a scientist who uses fossils to reconstruct

              the history of life millions of years before humans existed.

          a. geologist

          b. botanist

          c. fossilologist

          d. paleontologist

____12. A branching key is a:

          a. a tool used to organize the relationships between organisms based on

             similarities and differences.

          b. tool to open up the knot holes found on trees.

          c. a tool used to sequence the bases found on a DNA molecule.

          d. another name for a dissection key.

____13. A (n) _______________ is a special guide developed by taxonomist to

           aid in identifying unknown organism by answering a series of yes and no

           questions.

           a. encyclopedia

           b. microscope

           c. dichotomous key

           d. computer

____14. Which of the following is not a Kingdom of living things?

           a. Plant

           b. Animal

           c. Protist

           d. Virus

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