Clearing land is not a sustainable practice in any form, so not A. Crop rotation is important for maintaining soil fertility, but is not necessarily sustainable. It's definitely not C. It is likely D because using only renewable resources is top notch sustainability.
Answer:
Medulla and renal pyramid
Explanation:
The urinary system is comprised of the kidney, ureter, urinary bladder, and urethra. The kidney produces urine, which contains excess water, electrolytes and waste products of the body. It then flows down the ureter into the bladder where it is temporarily stored. The bladder is then emptied via the urethra.
Answer:
The correct answer is option C. One system is switched on while the others are switched off is a false statement.
Explanation:
A biological energy system is a set of biochemical reactions known as metabolic processes that are concerned with the energy flow in an organism. In these processes energy converts into the ATP that is helpful in all types of cellular or muscular activity.
In the biological energy system, multiple or more than one system can be active at a time its not necessary that one system has to switch off while other is on.
Thus, the correct answer is option C. One system is switched on while the others are switched off is a false statement.
Nutrients move directly into the esophagus where it continues to be warmed and lubricated as it moves toward the stomach.