Results of the 2018 Student Biology Olympiad
On March 13, a student biology olympiad was held at the Faculty of Biology of V. R. Karazin Kharkiv National University. Tasks and results are presented here. Let us congratulate the winners!
Task 2 (checked by the task author, Associate Professor of Botany and Plant Ecology Yu. G. Gamulya):
The APG classification of angiosperms (e.g., APG-IV, published in 2016) shares many features with other classifications. How does it fundamentally differ from other widespread systems, what principles does it use for grouping taxa, and is a compromise possible between APG and other classifications?
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Systematic position |
Stage of ontogeny |
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A |
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... |
Now — the tasks themselves.
Task 1 (checked by the task author, Associate Professor of Biochemistry K. V. Kot):
Some archaea live in rather extreme environments and in particular are thermophiles. Thermophiles can grow and reproduce at high temperatures: 45°C and higher (sometimes 80–90°C). To tolerate such conditions, archaea must have a set of biochemical adaptations of metabolism and processes related to reproduction. What adaptations should these be?
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Photo |
Systematic position |
Stage of ontogeny |
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A |
Danio rerio eggs |
phylum Chordata, class Bony Fishes |
embryonic development, organogenesis |
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B |
Sea urchin plutei |
phylum Echinodermata, class Sea Urchins *other classes were also counted, because the plutei of different echinoderms are similar |
post-embryonic development, larva |
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V |
Exuvium of a tardigrade with eggs |
phylum Tardigrades, class Eutardigrada * indicating the class was optional |
embryonic development, egg |
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H |
Neurula of the clawed frog |
phylum Chordata, class Amphibians |
embryonic development, neurula |
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D |
Nauplius of a cyclops |
phylum Arthropoda, class Crustaceans |
post-embryonic development, larva |
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Calymmian |
Beetle pupa |
phylum Arthropoda, class Insects |
post-embryonic development, pupa, metamorphosis |
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Zh |
Cercaria of a fluke |
phylum Flatworms, class Trematoda (Digenea) |
post-embryonic development, larva |
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Z |
Human morula |
phylum Chordata, class Mammals |
embryonic development, cleavage |
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I |
Egg capsules of rays |
phylum Chordata, class Cartilaginous Fishes |
embryonic development, egg |
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K |
Chicken embryo |
phylum Chordata, class Birds *the class Reptilia was also counted, because reptile embryos can be very similar and can be told apart only by the tail |
embryonic development, organogenesis |