Answer:
its c.
Explanation:
i had this question on a study guide.
Answer:
Stimulus is something that causes a reaction, especially interest, excitement or energy. An example of stimulus is a shiny object for a baby. An example of stimulus is an influx of cash into the economy that is designed to help the economy to gain momentum or energy.
Explanation:
in physiology, a stimulus (plural stimuli or stimuluses) is a detectable change in the physical or chemical structure of an organism's internal or external environment. The ability of an organism or organ to detect external stimuli, so that an appropriate reaction can be made, is called sensitivity.
Answer:
Seismic waves, Outer, and Mantle.
The control group is the object that is untouched to see the difference. For example, you are trying to find what compost is better for plants. You have 3 plants and 2 different types of compost. you put one type in each plant except for one. The one without compost is called the control group.
