Networks
Interactive practice questions
Within a water system the feeding chain can be described as follows:
Tadpoles, Water Beetles and Snails all survive by eating algae.
Small Fish eat the tadpoles, whilst frogs survive on water beetles and snails.
The kingfisher, a skillful fishing bird, survives on eating small fish and frogs.
Which of the following graphs represents the feeding chain? Note that the arrows point from the thing that is eaten to the thing that eats it.
A
B
C
D
Easy
1min
This diagram represents the internet fiber optics cables connecting several cities.
Easy
< 1min
This diagram represents an electrical circuit that includes a globe, resistors and multiple switches.
Easy
< 1min
The following figure displays newspaper routes between several houses.
Easy
< 1min
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