<h2>Answer:</h2>
Following are the four combinations of active or inactive regulatory proteins that could be present anytime in the cell:
- Active repressor , Active activator
- Active repressor, Inactive activator
- Inactive repressor, Active activator
- Inactive repressor, Inactive activator
It’s between b and d. I would go with b based on the information below.
The four primary functions of carbohydrates in the body are to provide energy, store energy, build macromolecules, and spare protein and fat for other uses. Simple carbohydrates are quick energy sources, but they do not usually supply any other nutrients or fiber. One of the most important functions of carbohydrates is to form a structure called the glycocalyx. This is a coat around the cell.
The process that occurs before hypothesis is Identifying the variables.
<h2>Answer with Explanation </h2>
The speaker and transformer are the devices that consume the electrical energy and release the sound as an output in this process the phenomena which are acquired is electromagnetic induction. The sound energy can also be converted into the electrical energy but fir this process high temperature and high frequency is required. The sound energy is important as it informs us about the character, place and time.