Answer:
D. Organs and muscles require more blood under stress.
Explanation:
Because muscular contractions can have a protracted metabolic expenditure because it has to be adjusted to the demands of the contracting muscles.
Researchers in the field of biomechanics discover new and effective ways to perform a skill or a sport based on their analysis of <u>body movement</u>
Answer: Option C
<u>Explanation:</u>
Biomechanics is a field which is concentrated to effectively improve the skills and output of a sports man. Here small techniques are taught to uplift the performance. The skilled teachers and coaches research and discover new and effective ways by trial and error method by observing and implementing the best technique which would be apt to increase the skills.
Body movement in a perfect way that is the call of the hour which requires consistency in the sports performance. How the body movement when aligned can trigger the performance of the individual is researched through biomechanics.
self harm, emotional reck, eating to much or to less, syisidal thoughts, and sleeping less
Living things need water in their cells. Water is the universal solvent - most of the chemicals a cell needs is dissolved and transported in water. Water is an environment where chemical reactions can occur and water is needed in many of those reactions - like the hydrolysis reaction (needed in the break down of food molecules). If a cell becomes dehydrated chemical reactions slow down. Chemical balance of the cell is changed as waste materials are not removed fast enough, food is not broken down, etc. Water also helps regulate the heat that can build up in a cell during chemical reactions. A dehydrated cell = increase in cell temp. Water content of a cell also affects the pH of a cell environment. Certain reactions occur better at certain pH. Homeostasis is maintaining a balance with the the environment. Without water the balance is upset.
The answer is tighten and contract.
In order for the students to pull the rope their muscles will need to tighten and contract so they are able to continuously pull with all their strength and power. Relaxed or twitched muscles will result in release of the rope.
