Bio 1b: ZoologyLAB PRACTICAL 1 Fall 2008

Note your starting station #____(2 pts ea)

1) This organism is a ______and is in subclade______.

2) Name the main two characteristics of a body plan shared by the superclade are ______and ______.

3) This ______returns to the same ______every day after foraging.

4) The two spots on the anterior of this ______are called ______, used for sensing ______.

5) The ______feeds with ______which move particles to an ______.

6) This ______has a test made of ______.

7) These animals employ ______mechanisms of ______, including spines, ______, ______, and ______.

8) This is a ______structure in the cnidarian subclade ______.

9) The ______exhibited in these examples defines the subclade______.

10) This ______- dwelling organism is more related to a ______(common name) than a sponge.

11) Name these two clades (______, ______) and do they represent sister taxa? ______.

12) This is ______a ______parasite responsible for Malaria.

13) This is a ______used in some freshwater clams for larval ______.

14) This is a fossil______.

15) Name the three cell types found in this organism______, ______, and ______.

16) These structures are ______, found in clade ______.

17) This structure is a ______used for attachment to a ______.

18) Name the two sister clades represented by these two specimens ______and ______.

19) Name the three structural morphologies (body forms) found within this clade.

20) This organism is a ______and it moves using______.

21) This structure is a ______, which forms during ______reproduction.

22) This structure is a ______made of ______.

23) These organisms use ______and ______as defense mechanisms.

24) This organism ______has a ______which enables it to be autotrophic.

25) Because these parasites reproduce by ______, they must rapidly evolve before the immune system recognizes the surface glyco-______.

26) Living in the epipelagic zone, species such as purple bubble snail (Janthina janthina) and the Paper Nautilus (Argonatus spp.) have adapted unique reproductive strategy for this habitat called ______. This other animal does it too!

27) This organism is a ______made of ______.

28) This structure is a ______made of ______.

29) This is a ______as a result of ______reproduction.

30) See question #35 below

31) These two organisms are both ______and both occupy a similar ______habitat.

32) On ONE graph, draw the expected results of a test of the competitive exclusion principle for two populations of Paramecium. Label the axes. Explain the premise of the principle (7 points).

33) An organism’s lifestyle can determine form and function. Compare the sessile and mobile lifestyles of the Cnidaria with an example for each.(5 pts)

34) After examining specimens at station #30a – f, construct a simple phylogenic tree to show the relatedness among these diverse taxa. Indicate synapomorphies with numbers. (8 pt)

35) A type of specialized cells are only found in the cnidaria, a) what are these called, b) what they used for and c) what other organism makes use of them? (3 pt)

36) Explain how flukes move from a primary to a secondary host. (4 pt)

37) Draw a ctenophore including structures used for a) prey capture and b) locomotion. (3 pt)

38) Lizard dewlaps are thought to be secondary sexual characteristics conferring greater reproductive success to males with brighter dewlaps. Design an experiment to test this hypothesis and describe your expected results. Please use a graph to illustrate your expected results. (10 pt)

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