Question

what term is used to describe the ability of a species to become less susceptible to the effects of a pesticide over time? resistance botanicals

Explanation:

The question is about the ability of a species to become less affected by a pesticide over time. In biology (a subfield of Natural Science), the term "Resistance" refers to the ability of an organism (or species) to withstand the effects of a substance like a pesticide. "Botanicals" are plant - derived substances, not related to the described ability. So the correct term is Resistance.

Answer:

Resistance