This is the origin expression is often attributed to Charles Darwin and, although it appears in the fifth edition of his Origin of Species, 1869, it is there attributed to Herbert Spencera and the phase also means what animal is likely to survive out it the wild
A. Atoms are indivisible particles.
This was revised after the discovery of Protons, Neutrons, and Electrons. Which, in part, can be further broken down into Quarks (for the exception of the electron, as it is a Lepton).
I think that a basic experiment involves a minimum of two participants group(s). Simple or basic experiment are ones that researchers use to determine if changes in one variable might lead to changes in another variable. In these experiments looking at the effectiveness of a new medication, for example, study participants may be random.
