Thursday, April 15, 2021

NRMjobs Quiz answers 15-Apr-2021

This week’s theme: ‘Rings’

(1) What is the science of dating past events by studying annual growth rings in trees?

Answer: Dendrochronology.

(2) What is the nest of a ringtail possum called? (bonus: where does the word originate?).

Answer: Drey. (bonus: English term for a squirrel’s nest).

(3) Platycercus elegans and Platycercus eximius were once regarded by biologists as the two ends of a classic ring species, circling the arid inland (DNA studies have since disproved this theory). What are their common names?

Answer: Crimson rosella and Eastern rosella.

CORRECTION: The quiz master withdraws the above question (3), with apologies. The answer is still ‘rosella’, but it turns out the whole ring species thing with rosellas is far more complicated, and the question is fatally flawed and incorrect.

(4) The age of a bony fish can be determined by examining the annual rings laid down in what bone-like structure in its head?

Answer: Otolith.

(5) What is an elastrator?

Answer: A device used to apply rubber rings to castrate livestock (or for docking tails etc.).





1 comment:

Unknown said...

Elastrator for castrating livestock. For humans we use a device called a wedding ring.