Lymph is the fluid carrying the white blood cells. It protects the body against many infections. Lymph nodes are the small areas throughout the body and abundantly present in the neck, arm pits and groin areas. They contain the lymphocytes that fight infections. These nodes filter out harmful organisms and abnormal cells before the lymph reaches the blood. A swollen lymph node is an indication of an infection. It can be a minor infection like the ear infection, strep infection or serious medical problems like the lymphomas, other cancers and AIDS. During pharyngitis which is the inflammation of the pharynx, the lymph nodes swell with the T lymphocytes due to the immune response.
Answer and explanation:
As for <u>oligotrophic lake</u>, the answers would be as follows:
<u>Oxygen level (+).</u> This is because oligotrophic lakes are usually deep waters, and it's on deep waters that oxygen is usually far more contained and dissolved.
<u>Nutrient content (-). </u> Oligotrophic lakes handle a really low level of nutrients. This is the reason why it's inhospitable for any type of fauna and vegetation.
<u>Productivity (-). </u>Following what it's stated above, oligotrophic lakes are essentially unproductive because of its poor nutrient content.
Answer:
No, they could not interbreed.
Explanation:
When a group of squirrels separate from each other and develop its unique characteristics, this is known as <em><u>speciation</u></em>. One type of speciation is <em><u>allopatic speciation </u></em>in which one squirrel's species separate into two separate groups and isolated from each other because of the physical barrier. This physical barrier can be a mountain range or waterway and makes it <u>impossible to breed with one another</u>. Each squirrels species develop unique genetic characteristics due to change in habitat and genetic variations are transferred to their offspring.
Knee flexion exercise is an exercise that involves bending the leg at the knee joint, thereby reducing the gap between the lower leg and upper leg.
The benefit of this exercise includes:
- Helps to strengthens the muscles in the back of the thigh.
- Helps to strengthens the muscles at the hamstrings.
The voluntary action that i may perform after experiencing fatigue from the exercise is to Stand Upright.
The action will helps my lower leg and upper leg to regain normal posture, thereby reducing the muscle tension around my knee.
Learn more about knee flexion exercise here
<em>brainly.com/question/22466488</em>
