The spiders have became resistant to the pesticide.
How to negative a sentence
A reinforcement schedule is a pattern that defines how often a desired response will be reinforced.<span>
</span>A variable-ratio schedule <span>is a schedule of reinforcement where a response is reinforced after an unpredictable number of responses.</span>
<span>Fixed-interval schedules on the other hand reinforce behaviors after set time periods.</span>
Answer:
D. There is a reduced use of pesticides, herbicides, and fertilizers
Explanation: