BI 173 - Fourth Exam - 2007



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. The subgroups that, compared to other related subgroups, have the most described species are

                    a. Osteichthyes & insects             b. Bivalves & crustaceans            c. Arachnids & birds
                    d. Mammals & snakes        e. Always lording it over the other poor subgroups, but size doesn't matter - does it?

_______2. Which would be considered to possess a closed circulatory system?

                    a. Roundworm and starfish                     b. Earthworm and salamander                    c. Beetle and shark
                    d. Bird and moth                                            e. Does the closed system require a password to get in?

_______ 3. A mantle would be involved in the production of

                    a. Waste in an arthropod             b. A snail's shell            c. Waste in an annelid
                    d. A sea urchin's spines                        e. Tasteful decoration of a fireplace

_______ 4. Migratory birds differ from non-migratory birds based upon

                    a. Nesting habitat             b. Mating preferences            c. Temperature control             d. Food preferences
                                                                e. Who has the maps and snacks

_______5. Which are annelids?

                    a. Leeches and polychaete worms             b. Earthworms and roundworms            c. Oligochaete worms and millipedes
                    d. Slugs and roundworms                                                e. Screw-tops and pop-offs

_______6. What are chelicerae?

                    a. Type of copulatory structure             b. Type of limbs            c. Type of plankton
                    d. Type of mouthparts                                    e. Type of chewing gum


 

_______7. Poisons produced almost exclusively for defensive purposes would be found in the

                    a. Spiders & snakes                 b. Cnidarians & Mollusks                c. Amphibians & millipedes
                    d. Centipedes & Echinoderms                        e. Student that used to sit next to you in that other class

_______8. The presence or absence of wings on an insect are a reliable indicator of

                    a. Feeding habits             b. Diapause            c. Sexual maturity             d. Polymorphism
                                e. Shouldn't "flight" have shown up here somewhere...?

_______9. Which groups are almost entirely benthic?

                    a. Crustaceans and centipedes             b. Trematodes and cephalopods            c. Millipedes and lancelets
                    d. Tunicates and echinoderms                                e. They benthic? I'm really thorry...



_______10. Which groups are largely or entirely marine?

                    a. Oligochaete worms and cephalopods                     b. Bony fish and polychaete worms
                    c. Echinoderms and cartilage fish                              d. Crustaceans and echinoderms
                                                                    e. Marine or moron?

_______ 11. A swim bladder is used for

                    a. Respiration             b. Buoyancy             c. Excretion            d. Skeletal structure             e. Practical jokes

_______12. Modern winged insects use what sort of flight drive system?

                    a. Indirect             b. Direct             c. Tracheal            d. Malpighian             e. Power steering

_______ 13. Which would be endotherms?

                    a. Moths & wasps             b. Frogs & lizards             c. Robins & cats            d. Platypus & alligator             e. A therm's butt

_______14. The chordate nerve cord is

                    a. Dorsal, single, and hollow                b. Ventral, double, and not hollow                c. Dorsal, single, and not hollow
                    d. Dorsal, double, and not hollow                                e. Really difficult to plug in

_______15. The importance of a four-chambered heart lies in

                    a. Heating of the blood                    b. Oxygenation of the blood                c. Efficiency of the pumping muscles
                    d. Closed versus an open system                                e. How high you can count



_______16. Which would produce a relatively sealed egg?

                    a. Crow, turtle, kangaroo                b. Crocodile, turkey, platypus                c. Lizard, robin, opossum
                    d. Frog, snake, chicken                                            e. A lady seal

_______17. The invertebrate chordates include the

                    a. Sea squirts & lancelets                 b. Starfish & sea urchins                c. Earthworms & leeches
                    d. Lamprey eels & snakes                            e. Ones that don't own a computer



_______18. Which most likely represents a "bridge group" between annelids and arthropods?

                    a. Chelicerates                     b. Cephalochordates                    c. Leeches
                    d. Onychophorans                e. That's not a bridge you want to be trapped on during a moonless night



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. What are the two currently-surviving groups of jawless fish?
2. Briefly explain the biological significance of the trochophore larva.



3. The major subgroups of modern reptiles each include pairs of types - name two subgroups, both types each

AND
 
AND
 
4. Briefly explain what makes an organism plankton.



5. What are the two subgroups of chondrichthyes?
6. Give four of the major groups found in the arachnids.
7. The two major subgroups of the amphibians:

AND
 
AND
8. Give two examples, from two completely different phyla, of animals that lack cephalization.
9. What are the two different types of purposes for which chromatophores are used?
10. Give the numbers and types of appendages typically found on an insect's thorax.



11. For an operculum -
What is it?

 

 What group has it?
12. Answer for Caenorhabditis elegans -
Phylum?



 Significance?
13. Name two characteristic features found only in Echinoderms.
14. Give two sets of differences in the features of:
DIPLOPODS / Millipedes CHILOPODS / Centipedes


15. Name two behaviors found in social insect colonies that most people would reasonably assume only humans do.
16. In biological terms, briefly define -
Obligate -


Facultative -


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 six subgroups (Order level) of the insects? (Once you have given a group, any group within that group will not count - these must be separate groups).


2. In Annelids -
3 Features That Repeat Metamerically 3 Features That Do Not Repeat Metamerically






3. For each of the three major subgroups of Mollusks, give the official name of the group, and then describe the characteristic form the foot takes in that group




4. What are three characteristics of Chordates that are usually found in embryos but not adults?




   
5. Give three sets of distinctive differences between:
AMPHIBIANS REPTILES




6. Give six features of birds that can be easily be linked to flight (other than flight itself).




7. For three different types of parasitic nematodes, give the species, subgroup, or common name and then one feature for each that makes them unusual, even compared to other nematodes.




8. Give six different orders of mammals


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.

There are a number of basic "layout plans" (NOT symmetry patterns) that show up in many unrelated groups. For Three Points each, describe the plans (you can describe or use a "typical" example.).

What phylum do barnacles belong to? Three Points.

What type of animal is the official New York State fossil? Three Points.

The single species that probably contains the most individual animals - which subgroup does it belong to? Three Points.

What poison typically smells like almonds? Three Points.

When vertebrates moved from the water onto land, what other groups of organisms were most likely already there? Three Points each.

Briefly explain why many reptiles have forked tongues. Three Points.

Scientists used to think that the pterosaurs, the winged lizards of the time of the dinosaurs, couldn't really fly because they lacked what structure? Three Points.

Give one plausible reason why there are no phyla that are completely terrestrial. Three Points.


  		  
 
 

 

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