Answer:
the correct answer would be D or if not then B
Explanation:
For instance, light stimulation, heat stimulation, chemical stimulation, sound stimulation, etc. -The stimulus that comes from within an organism is the internal stimulus. Humor stimuli and neural stimuli etc (release of hormones such as thyroxine).
The answer is number 2. A will pair with T and C will pair with G
<span>Answer: Smooth Endoplasmic Reticulum
Hope I helped</span>