D Viruses and bacterial cell contain structures made from proteins
The answer for the above question is Cardiovascular fitness. It is the ability of the heart, lungs, and blood vessels to function efficiently when a person exercises. Cardiovascular system is the body system that includes the heart, blood vessels, and blood, and functions by transporting oxygen and nutrients to body cells and removing cellular wastes. Cardiovascular endurance on the other hand is the ability of the body to work continuously for extended periods of time.
<span>Adaptation means to change in order to fit into an environment, and acclimatization only refers to the situation in which an organism accustoms to the climate of a certain place.</span>
The digestive system is made up of the gastrointestinal tract—also called the GI tract or digestive tract—and the liver, pancreas, and gallbladder.
The GI tract is a series of hollow organs joined in a long, twisting tube from the mouth to the anus.
The hollow organs that make up the GI tract are the mouth, esophagus, stomach, small intestine, large intestine, and anus.
The liver, pancreas, and gallbladder are the solid organs of the digestive system.
They work together to digest and absorb the food that we consume which is of course vital for life and growth.
Have sex , savor some chocolate, listen to music or eat something spicy