<span>All the muscle fibers under the control of a single motor axon are referred to as </span>Motor Unit. <span>A </span>motor<span> unit is made up of a </span>motor<span> neuron and the skeletal </span>muscle fibers <span>stimulated by that </span>motor<span> neuron's </span>axonal<span> terminals. Groups of </span>motor<span> units often work together to organize the contractions of a </span>single<span> muscle.</span>
Answer:
PVR is calculated by the formulae: 
Explanation:
Pulmonary vascular resistance may be defined as the resistance to blood through the pulmonary circulation.
PVR can be determined by the following formula:
Here, PAP is the pulmonary artery pressure, PAOP is pulmonary artery occlusion pressure and CO is cardiac output.
Answer:
There was a release of immense heat within the bodies as they collided together as gravitational potential energy was converted into kinetic energy of the individual gas particles and then collisions between these particles converted this energy into heat.
Therefore, a massive amount of heat was released.
Answer:
The correct answer is: True.
Explanation:
- Obesity is a disease condition in which the BMI or Basal Metabolic Index of a person goes beyond normal.
- The BMI of a person is calculated by finding the ratio between the weight of the person measured in kilograms and the square of the height of the person measured in metres.
- A person having a BMI below 18 is considered to be underweight, between 18 and 25 is normal weight, between 25 and 30 in overweight and above 30 is obese.
- The disease is caused more due to social reasons than biological reasons.
- When a person A lives near the vicinity of another person B who is obese, this means the person A lives in an environment where a proper balanced diet is not maintained during the consumption of food. They tend to consume food rich in oil and fat.
- Hence, the intake of the fat rich food by the person A will result him in consuming fat and oil in amounts far more than his body actually requires. Excess fats deposits in the body thereby increasing his BMI and resulting into obesity.
- Due to obesity the person B will also show the symptom of being lethargic and will not prefer to do exercises. This lethargy would be induced in person A as well.
I believe your right C seems like the best choice to me.
