ZEN 161 Animal Diversity: Practicals 1–4 Comprehensive Review

Under what two conditions must a student repeat the ZEN 161 module?

A student must repeat the module if they: (1) do not attend ALL practical sessions (including being absent for more than $1$ practical, even with an excuse or medical note), or (2) do not achieve a final practical mark of at least $40\%$ ($40$ out of $100$).

What are the criteria for a student to be eligible for practical exemption in ZEN 161?

The student must have: (1) been registered for ZEN 161 the previous year, (2) missed no scheduled practical sessions the previous year, and (3) obtained a final practical mark of $65\%$ or higher the previous year.

How is the final practical mark for ZEN 161 calculated?

$15.00\%$ per practical session for sessions 1 through 4 ($60.00\%$ total), plus $40.00\%$ for the Practical exam, totaling $100.00\%$. Within each practical session 1 to 4, the pre-practical assignment counts $33.33\%$ and the post-practical test counts $66.67\%$.

What are the eight primary taxonomic hierarchy levels used in biological classification, from most inclusive to most exclusive?

Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species.

According to the practical guide, how many total species of organisms are described, and how many of those are insects?

There are approximately $2{,}160{,}000$ total described species, of which $751{,}000$ are insects.

What are the four diagnostic morphological characteristics shared by all members of Phylum Arthropoda?

(1) Possess an exoskeleton (external skeleton), (2) undergo moulting (ecdysis), (3) undergo metamorphosis, and (4) possess jointed legs.

What structural difference distinguishes biramous appendages from uniramous appendages in arthropods?