(2 marks each) |
ANSWER ALL MULTIPLE CHOICE QUESTIONS ON THE OPTICAL SCORING SHEETS. USE THE EXAM SHEETS ONLY FOR YOUR OWN PERSONAL NOTES.
For each statement below, indicate the one choice that yields the single best answer.
(Note the different forms a multiple choice answer may take).
(2 marks per item unless noted otherwise) |
21) What is the name (2-marks each) and the main function (2-marks each) of each of the two kinds of nuclei in the Ciliophora: a) ________________________________________________________________________ b) ________________________________________________________________________ 22) The three 'body plans' of sponges are referred to as: _______________________ _______________________ _______________________ 23) List two anatomical features: that Anthozoan polyps possess but a) ___________________________________ Hydrozoan polyps do not: b) ___________________________________ that Scyphozoan medusae possess but c) ___________________________________ Hydrozoan medusae do not: d) ___________________________________ 24) In turbellarians, the two different a) ___________________________________ types of reproductive systems, each of which has a distinctive type of egg, b) ___________________________________ are called the: 25) Two phyla that exhibit a diploblastic a) ___________________________________ body organization are: b) ___________________________________
(10 marks) |
26) Using labelled diagrams, illustrate the significant similarities and differences between the ascon, sycon and leucon types of sponge organization.
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(revised Jan. 1, 2015)