BI 173 - Second Exam

BI 173 - Second Exam - 2009

MULTIPLE CHOICE.

Place the letter of the choice that best answers the question
on the line to the left. Two Points Each.

NOTE: "e" answers are never the correct answer.

_______ 1. Very small organisms commonly respire and excrete using

a. Diffusion b. Contractile vacuoles c. Cilia d. Golgi bodies e. Extreme care

_______ 2. A near-extinction can produce

a. A bottleneck effect b. An alternation of generations c. A spiral effect d. A founder effect
e. A really bad weekend

_______ 3. An excretory structure that moves through hemolymph and drains into the intestine:

a. Malpighian tubules b. Protonephridia c. Nephrons d. Glomerulus
e. I'm not sure, but I don't think a plumber could fix it

_______ 4. Which system is most likely to be carrying oxygen?

a. Open circulation b. Closed circulation c. Lymphatic d. Diverticula e. Tanks with little wheels

_______5. Why are there no water-breathing endotherms?

                    a. Their metabolic energy needs are too low                    b. Oxygen dissolves badly in water
                    c. All endotherms are land-living                                     d. All of the above
                                                            e. It's the bathing - they hate it

_______6. Which pattern includes long periods of virtually no change?

                    a. Uniformitarian             b. Punctuated             c. Gradual            d. Random             e. Marriage

_______7. Humans, horses, and dogs are

                    a. Dioecious             b. Monoecious             c. Radial            d. Metanephridial             e. Fuzzy?

_______8. Contractile vacuoles are involved in

                    a. Osmotic response             b. Excretion             c. Ingestion            d. Respiration             e. Legal agreements

_______9. The sign and symptoms of inflammation are a direct result of

                    a. Epidermal response             b. Antibody release            c. Capillary expansion             d. White blood cell migration
                                                e. Doing something that was a bad idea in the first place

_______10. Which one should not excrete uric acid?

                    a. Spider             b. Pigeon             c. Lizard             d. Catfish            e. My car

_______11. Nearly continuous eating is a benefit of

                    a. Acid use             b. Tube digestive system             c. Sac digestive system            d. Enzyme use             e. Buffet style

_______12. Lymphatic systems

                    a. Carry fluid and white blood cells                                 b. Surround muscles                    c. Are secondary oxygen carriers
                    d. Surround central nervous systems                                                    e. You made that word up!

_______13. According to neodarwinian theory, what does selection actually alter over time?

                    a. Individuals             b. Populations             c. Gene pools            d. Cells             e. Playlists

_______14. Evolution means change over time, but some animals appear to have evolved a resistance to change, probably because they are

                    a. In very stable niches             b. The last of their species            c. Very advanced forms             d. Purely homeostatic
                                                                                e. The animal equivalents of Rush Limbaugh

_______15. Peristalsis is a type of

                    a. Respiratory behavior             b. Immune response            c. Movement pattern             d. Heat generation process
                                                        e. Peri - of the pear...stalled your sister...I got nothin'

_______16. An animal with serial homology of paired legs would very likely also have

                    a. Fins             b. Lungs             c. A single heart            d. A brain             e. An inflated opinion of itself

_______17. Thrombocytes are involved in

                    a. Antibody production             b. Clotting             c. Histamine release            d. Oxygen delivery             e. Doin' that thrombo thing

_______18. Which is a flexible rod used as a swimming aid?

                    a. Cuticle             b. Notochord             c. Malpighian tubule            d. Pseudopod             e. I just use one of those foam boards...

SHORT ANSWER.

Pick TEN Questions to answer in the spaces provided.
NOTE: if you answer MORE than ten, only the first ten will be corrected.
Four Points each. Partial credit is possible.

1. Give two sets of differences (and don't give the same thing with a different name):
PROTOSTOMES	DEUTEROSTOMES

2. Normally, oxygen debt occurs
IN WHICH TISSUE SUBTYPE?	UNDER WHAT CONDITIONS?

3. Define sexual selection.

4. What integumentary layer is found in vertebrates but not invertebrates?

5. Put in proper order from largest to smallest: Class, Family, Genus, Kingdom, Order, Phylum, Species, Subfamily, Superorder. (Notice the numbers go across!)
1	2	3
4	5	6
7	8	9

6. What are two different functions of saliva?

7. What two features are essential to a respiratory surface?

8. What are two ways that an endoskeleton is generally better than an exoskeleton?

9. Show a countercurrent heat-transfer system with a labeled diagram.

10. What are the two different functions of air sac systems?

11. Over time, populations can respond three ways to changes in the environment. What are two of those ways?

12. Define osmotic conformer.

13. What are two behavioral adaptations used by ectotherms to maintain homeostasis?

14. Under what conditions, usually, is genetic drift a significant factor?

LONG ANSWER.

Select and answer completely any four of the following questions.
NOTE: if you answer more than four, only the first four will be corrected.
Six Points Each. Partial credit is possible.

1. What are four conditions, according to Hardy-Weinberg principles, necessary in a population for allele frequencies to persist?

2. Fill in:
Binomial nomenclature is the term given to rules about naming ____________________________.

What are three
of those
rules?

3. What, generally, are six different functions of integument?

4. For three basic types of feeding (not the subtypes of one of the basic types!), give the type and an example of an animal that feeds that way.

5. For the three types of blood vessels found in closed circulatory systems, name the vessel type and then give the physical (not functional!) features that make those vessels distinct from the others.

6. For three distinctly different methods of movement found in animals, name the type and briefly describe how movement is brought about.

7. Put these labels in the proper place on the diagram: anterior, distal, dorsal, posterior, proximal, ventral.

There was a paste-up drawing of some sort of animal with arrows pointing at different parts.

Link to Answer Key

BONUS QUESTIONS.

Answer as many or as few as you wish. You can't lose points on the rest of the exam by getting these wrong. Partial credit is possible.

Many of the Burgess Shale fossils in Canada are animals that have no modern phylum relatives. What is the likeliest reason they all went extinct? Three Points.

To which major type of organism does the "modern species concept" not remotely apply? Three Point.

What does paraphyletic mean? Three Points.

What makes a body space a coelom? Three Points.

What inversely correlates with survival prospects in offspring? Three Points.

For Three Points, name a group that routinely uses alternation of generations.

In humans, the blastula isn't really a sphere. What shape is it (Two Points), and why is it that shape (Two Points)?

What environmental factor is most closely linked to the evolution of human skin colors? Three Points.

Why are virtually all small animals proportionately stronger than large animals? Three Points.

Why is there nitrogen (N2) in our blood? Three Points.

Why is blood a poor food? Three Points.

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