University of the West Indies (Mona)
Department of Life Sciences
BIOL1262 LIVING ORGANISMS I
Weeks I – II Tutorial Questions
1. Explain why the Kingdom to which plants belong is now known as Kingdom Viridiplantae
rather than Kingdom Plantae.
2. With the aid of NAMED examples, describe the types of life cycles observed in the algae. Of
these illustrate the one that is characteristic of the Viridiplantae.
3. The diagram below represents the life cycle of an autotrophic multicellular organism:
a.
Using the spaces provided in the table below, fill in the correct labels for the stages in the
diagram of the life cycle above:
[6 marks]
Letter
Stage in life cycle
Ploidy
(i.e. n or 2n)
A
B
C
E
b.
Identify the processes taking place at D and F. [2 marks]
D: _________________________ ;
c.
F: _______________________
Give an example of an organism (to genus) and the phylum to which it belongs, that
displays this type of life cycle. [2 marks]
Organism: ___________________________;
Phylum: ________________________
University of the West Indies (Mona)
Department of Life Sciences
4. Outline five requirements for the colonization of the terrestrial habitat as seen in the bryophytes.
5. List ten descriptive features of the Bryophytes and tabulate similarities and differences with the
green algae.
6. Discuss the trends in the bryophytes that show a gradual increase in complexity towards a
greater similarity to flowering plants.
7. Using diagrams, illustrate the reproductive strategies employed by the bryophytes.
8. Explain why the Bryophytes are limited to life within habitats with appreciable amounts of free
water.
9. Briefly distinguish between the Pteridophytes and the Bryophytes. Outline five contrasting
features that enable Pteridophytes to be more successfully adapted to terrestrial habitat