It is surrounded by it's environment.
Around 2 centimeters so I would say either C or D
Answer:
Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor. hope this helps
Explanation:
Troponin-tropomyosin molecules prevents a muscle contraction from occurring when the muscle is at rest.
<h3>What is
muscle contraction?</h3>
The activation of tension-producing regions within muscle cells results in muscular contraction. Because muscle tension can be created without changes in muscle length, such as when holding something heavy in the same position, muscle contraction does not always imply muscle shortening in physiology. Muscle relaxation, or the return of the muscular fibers to their low tension-generating state, occurs after a muscle contraction has finished.
Both length and tension can be used to characterize muscle contractions. If the muscle tension varies but the muscle length doesn't, the muscle contraction is said to be isometric. A muscle contraction is isotonic, however, if the tension in the muscle remains constant during the contraction.
To learn more about muscle contraction with the help of given link:
brainly.com/question/10115123
#SPJ4
Answer:
polypeptides
Explanation:
Amino acids generally represent the building blocks of proteins. In order words, proteins are polymers of amino acids.
The amino acids in proteins are linked together by peptide bonds. <u>A peptide bond is formed between two amino acids when the amine group of one of the amino acids combines with the carboxylic group of the other with the elimination of water</u>. When the reaction involves multiple amino acids, multiple peptide or polypeptide, also known as protein is formed.
