BI 173 - Third Exam - 2003

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. Which statement about protozoans is true?

                       a. Can only live in watery surroundings
                            b. Can only be active in watery surrounding
                            c. Can genetically produce any of the major locomotion structures
                            d. All of the above are true
                            e. After this test I will never think about them again

 

_______ 2. Metamerism is a type of

                            a. Bilateral body plan                                     b. Protozoan colony
                       c. Radial body plan                                      d. Muscular locomotion
                                                    e. Merism that’s really, uh, meta

 

_______ 3. Which would have a nerve net?

                        a. Glass sponge                     b. Flatworm                     c. Coral
                             d. Ameba                                         e. A nerve fisherman

 

_______ 4. Lipid-soluble hormones commonly have receptors

                        a. In the source gland                             b. On the cell membrane
                             c. Inside the cell membrane                    d. Inside the nucleus
                                e. On cellular phone towers - Sprint makes them, right-?

 

_______5. Ritualized behavior is thought to

                        a. Be based upon simple stimuli                     b. Reduce agonistic behavior
                              c. Be only found in social animals                 d. Always be learned
                                                e. Give animals an excuse to dress up

 

_______6. Which is most likely to be a tropic hormone?

                        a. Thyroid-stimulating hormone                         b. Growth hormone
                            c. Insulin                     d. Testosterone              e. The one with the deep rich tan

 

_______7. What is the primary advantage platyhelminths get from being flat?

                        a. Sensory                     b. Protection                     c. Size
                        d. Better digestion                         e. Weight Watchers endorsements

 

_______8. This section through a fish is what type of section?

                        a. Frontal                 b. Longitudinal                c. Biradial 
                        d. Cross                                e. Yummy with hor mustard.

 

_______9. A choanocyte is used for

                        a. Filter feeding                                     b. Replacing lost cells
                             c. Paralyzing prey                                 d. Hollowing an embryo
                                                e. Making students’ brains explode

 

_______10. Members of which group are most likely to be autotrophs?

                        a. Sarcodines                     b. Porifera                     c. Mastigophora
                             d. Cnidaria                                 e. They do something to cars-?

 

_______11. Egg cell meiosis is typically complete around which occurrence?

                        a. Before sperm cell penetration              b. After sperm cell penetration
                             c. Before release from the ovary             d. Before yolk deposition
                                            e. Midway through the Barry White CD

 

_______12. The question, "Why would an alligator cease struggling when its belly is 
                                        rubbed?" addresses

                        a. Imprinting                                      b. Ultimate causation
                        c. Sign stimulus                                 d. Proximate causation
                        e. The other question - "Who was the first to think it was a good idea to try it?"

 

_______13. Neurosecretory cells would produce

                        a. Hormones                                         b. Neurotransmitters
                        c. Synapses                                          d. Spinal fluid
                        e. A secret from The Matrix. No, wait, that would be Neosecretory!

 

_______14. Which is a true statement?

                       a. Macronuclei can produce new macronuclei
                            b. Micronuclei can only make more micronuclei
                            c. Both types of nuclei originate as micronuclei
                            d. All of the above are true
                            e. Now I’m hungry for some macronuclei and cheese

 

_______15. Contractile vacuoles would most likely be found in

                        a. Sea anemones                                     b. Local pond amebas
                        c. Parasitic flagellates                             d. Portuguese man-o-war
                                            e. A book of long and pretentious names

 

_______16. Which would be a trait associated with homeotic genes?

                        a. Establishment of radial pattern                     b. Timing of adult stage
                        c. Production of tropic hormones                    d. Production of color receptors
                                e. Boy, there’s a word you don’t want to misspell...

 

_______17. Which should be true of territorial animals?

                        a. They should attack on sight
                        b. They should have a wide range
                        c. They should get enough benefit to make defending territory worthwhile
                        d. They should only react to invaders of the same species
                        e. They will eventually evolve the ability to draw maps with borders

 

_______18. Which is an allowable species name?

                        a. Buffyrius Vampirius                                     b. Angelus broodus
                        c. annoyingus Andrewius                                d. dawnius whinius
                        e. Whew, I was worried you wouldn’t ask the one thing I know...!

 

 

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 examples of different types of warning displays.

 

 

2. Answer about spicules:

Where are
they found?

What is
their
function?

3. What important capability seems to be directly connected to the evolution of mesoderm?

 

 

4. What is the general rule about animal weapons used in these manners?

INTRASPECIES

 

INTERSPECIES

5. What are two totally different ways that different subgroups use their pseudopods?

 

 

6. Put in proper order from smallest to largest: Class, Family, Genus, Kingdom, Order, Phylum, Species, Suborder, Superclass.

1

2

3

4

5

6

7

8

9

7. What are two advantages that compound eyes have over single-lens systems?

 

 

8. Sperm are generally designed to get their nucleus and only their nucleus into the egg cell during fertilization. Briefly explain why this is thought to be so.

 

 

9. Name the two alternation of generations body types in Cnidarians. For each, give a set that is a functional difference (something they do, not a physical feature!).

 

 

 

 

10. Describe (a naming term alone will not be enough) two different modes of asexual reproduction.

 

 

11. Give two different organ systems found in flatworms.

 

 

12. Give two different types of items which could be used in the feedback control of hormone levels. Looking for general parameters here, not specific examples.

 

 

13. If a researcher claims that bats are a polyphyletic group, what does that mean?

 

 

14. What is the current biological definition of a species?

 

 

15. What behavior is modified, and how is it modified, by the stigma?

 

 

16. Give two forms of environmental information that humans cannot detect with their senses but which some animals can detect. Do not include forms that are just beyond human ranges.

 

 

17. For releasing factors:

SOURCE:

 

FUNCTION:

 

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. From the characteristics lists for each (not just general animal characteristics), list six that both Sponges and Cnidarians have.

 

 

 

 

 

 

 

 

 

2. For social behavior, list three different for each column:

ADVANTAGES

DISADVANTAGES

 

 

 

 

 

 

3. For alternation of generations, give two different -

REASONS ORGANISMS DO IT

GROUP USING THIS REASON

 

 

 

 

 

4. Give three sets of differences that should apply to any species with genders -

EGG CELLS (OVA)

SPERM

 

 

 

 

 

 

5. For the three basic germ layers -

NAME OF LAYER

TWO ORGANS OR STRUCTURES LARGELY DERIVED FROM THAT LAYER

 

 

 

 

 

 

6. Match the following terms to the anatomical labels by writing them on the appropriate line:

ANTERIOR, DISTAL, DORSAL, POSTERIOR, PROXIMAL, VENTRAL.

______________

____________

______________

 

____________

______________ ______________

 

7. With terms or descriptions, give three sets of differences between

PROTOSTOMES

DEUTEROSTOMES

 

 

 

 

 

 

 

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.

Why would aquatic animals typically evolve internal fertilization? Three Points.

 

 

If a local picks up beaver fever, the symptoms eventually go away and for a while at least, contaminated water will no longer make them sick. For Four Points, explain why.

 

 

For Four Points each, why was it decided that these groups needed their names changed?

Sporozoans to
Apicomplexans

 

Coelenterates to
Cnidarians

 

What can slime molds do that is highly unusual? Four Points.

 

 

Malaria apparently "jumped" to humans from what other host? Three Points.

 

 

Briefly explain how ciliates demonstrate that reproduction is more important than survival. Four Points.

 

 

In what two ways do jellyfish most commonly kill people? Three Points Each

 

 

 

In what ways might "weaker" colonial anemones still exist in pools with "stronger" colonies? Three Points each.

 

 

 

For one possible solution to the Black Sea ctenophore problem, give the solution (Two Points) plus a possible drawback to it (Three Points).

 

 

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