Which of the following is not a requirement of natural selection?
differential reproductive success
overproduction of offspring
genetic variation
catastrophic events
inheritance

catastrophic events.

Explanation:

Several factors besides Natural Selection, such as gene flow, mutations, and genetic drift promote the evolution of populations, but only Natural Selection results in adaptations. Natural selection can explain the adaptation and specialization of living beings and depends on the existence of reproduction, heritable phenotypic variation, to some degree, and especially the difference of fitness among individuals. Reproductive differential and/or mortality favors certain genotypes over generations and may lead to loss or fixation of alleles over time within populations. Natural selection can act in different ways, depending on the variants phenotypic phenomena and the adaptive values associated with them, which may be disruptive, directional or stabilizing. Based in this, we can affim the catastrophic events are not required for natural selction to occur.

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.