Answer:
D. student 4
Explanation:
I personally find this question slightly bewildering. It does definitely make you think. I decided your best answer choice would be D, because a dog wouldn't always be there, or the weeds.
A. producers
producers=plants=autotrophs
Hope it helps! Comment if you have any questions and have an amazing day!
<span>A change in a organism's surroundings that causes the organism to react is called a stimulus</span>
