The answer is
Recombination is an exchange between homologous chromosomes (e.g. chr 1 from mom x chr 1 from dad). Since it usually happens during meiosis, these strands are later separated. Recombination can be unequal or equal, but it's usually equal, and unequal crossovers are generally quite small (but a common source of addition/deletion).
Reciprocal translocation refers to an exchange between different chromosomes (e.g. chr 1 x chr 2). It is considered a large scale mutation (resulting in a large addition to one chromosome, and a large deletion in another).
True
it is possible for a change in temperature to happen in either of them
reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population.
False, atomic mass is the weighted average mass of an atom of an element based on the relative natural abundance of that element's isotopes
