Science Quiz / 'R' in science

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Can you name the R's in these science questions?

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

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