Answer:
A) central
Explanation:
The lymphatic system plays a major role in specific immune responses. The lymphatic system is composed of lymph, lymphatic vessels, and lymphatic organs (bone marrow, thymus, lymph nodes, spleen, etc). These lymphatic organs help to produce and repair immune cells including lymphocytes (T cells and B cells), monocytes, and plasma cells that generate antibodies against specific pathogens. The lymphatic organs can be classified into 1-primary (central) lymphoid organs, i.e., bone marrow and thymus, that produce lymphocytes and 2-secondary lymphoid organs, i.e., spleen, lymph nodes, and tonsils, that filter out and destroy undesired pathogens. The central lymphoid organs are sites where lymphocytes can divide and proliferate.
A teen's resting heart rate is 60 - 100 beats per minute.
Answer:
As a principal, I would make sure the students affected by bullying knew they could come to a teacher. Having a trusted adult is very important so that way the student could explain their situation. I would enforce consequences for the bullies. Also educating staff and students on the signs of bullying. Many children won't speak up if they are being bullied, which would decrease the likelihood of the bullying going unnoticed. Not only this but preventing the bullies themselves by teaching the consequences of bullying at a young age.
Explanation:
Answer:
Explanation:
Long term effects of exercise Type of training
Cardiovascular system Cardiac hypertrophy; increased stroke volume (SV) at rest and during exercise; decrease in resting heart rate (HR); increase in cardiac output (Q); capillarisation at the lungs and muscles; increase in number of red blood cells Aerobic
Respiratory system Increased vital capacity; increase in minute ventilation (VE); increase in tidal volume (TV); decrease in breathing rate (BR); increased number of functioning alveoli; increased strength of the respiratory muscles (internal and external intercostals and diaphragm) Aerobic
Energy system Increased production of energy from the aerobic energy system; increased tolerance to lactic acid Aerobic; anaerobic
Muscular system Muscle hypertrophy; increased strength of tendons; increased strength of ligaments Resistance
Skeletal system Increase in bone density Resistance
