Science Quiz / 'R' in science

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A kind of inflammation of the joints.
When the frequency of an external force matches the natural frequency of the body then the body oscillates with large amplitude.
Another name is equilateral quadrilateral
The most common viral infectant of the human common cold
A type of surface acoustic wave that travels on solids
From latin 'stiiffness of death'
An evolutionary grade of animals, comprising today's turtles, crocodilians, snakes, lizards, and tuatara,
The gaining of electrons
Organelle associated with protein synthesis
The element responsible for Curie's death.
A distillation technique involving the condensation and return of vapours
The most common food source on the planet
A measure of how strongly a substance opposes the flow of current
A fractional value representing the ratio of the relative speeds of objects before and after a collision.
A mammal which primarily digests plant based foods.
Element with atomic number 45
A disease commonly associated with dogs and bats
A wave whose height is more than twice the mean of the largest third of waves in a wave record
A part of a longitudinal wave in which the density of the particles of the medium is less than the normal density.
Physicist widely credited with first 'splitting the atom' in 1917
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