QUIZ

ONWARD! HERE WE ARE AT WEEK SIX. NEXT WEEK IS THE HALFWAY POINT!

1. What phylum of animals are considered the simplest?

2. What multicellular organisms are algae?

3. What term is used for animals that live spcifically below the surface of the sea bottom?

4. There are 2 terms used somewha interchangeably for organisms that assist one another. Tell me one of them.

5. What animals, covering several phyla are rarely eaten but many are important as parasites?

6. What whale is the most endangered?

7. Which phyla is known for its regenerative powers?

8. What kinds of pearls are created when sand is deliberately introduced into one of the shell fish that can produce pearls?

9. What is the biggest fish in the ocean?

10. What marine mammal is though of as using tools?

ANSWERS TO THE LAST QUIZ

2. What is the current called where water from waves goes back out to sea?
ANSWER: rip or rip current

3. Which aspect of the ocean has the most complicated graph?
ANSWER: oxygen

4. What term is used for organisms lacking a nuclear memberane?
ANSWER: prokaryotes

5. What organism is seen as being important in "fixing" nitrogen?
ANSWER: cyanobacteria

6. What term is used to describe the process by which nutrients are brought up from the ocean bottom?
ANSWER: upwelling

7. During an El Niņo period, what happens to the thermocline in the Eastern Pacific?
ANSWER: it lowers

8. To what phylum do humans belong?
ANSWER: chordate

9. What is the term for the more recent classification system which relies on genetics rather than morpholgy?
ANSWER: cladistics

10. What term did Darwin use for the range of difference in some specific feature?
ANSWER: Natural variation