Science Quiz #667
Science and Nature Quiz for 27 October 2021
A new science quiz is available each week. Try our daily general knowledge quiz or work through our archive of daily and themed quizzes.
1
Lichens are a composite of two organisms, the most visually obvious of which is a fungus. What is the other?
A
An alga or cyanobacterium
Select from the options above.
2
What distinguishes the golden jellyfish of Palau from most other jellyfish?
A
For about 14 hours a day they make vertical excursions between the lake surface and a chemocline
B
Almost complete loss of their clubs, an appendage attached to the oral arms
C
They derive part of their food indirectly from photosynthesis
Select from the options above.
3
What type of computer uses three possible values in its calculations: the digits -1, 0, and +1?
Select from the options above.
4
What large flightless bird found in Mauritius by the Portuguese is believed to have died out in 1681?
Select from the options above.
5
What is the atomic number of the element which is the basis for all organic chemistry?
Select from the options above.
6
If a uranium or similar target is bombarded, what is a term for the neutrons which it ejects?
Select from the options above.
7
How many decades are there in a millennium?
Select from the options above.
