Answer: it B for sure
Explanation: you grow because your cells divide
Answer:
Repression
Explanation:
Repression, which is keeping to ones self disturbing thoughts. It is a form of defence mechanism that underlies all other defence mechanisms
Answer:
b. smoking can paralyze the ciliary escalator.
Explanation
Generally cilia in the respiratory tract of smoker will undergo paralysis for 1-3 hours after smoking, and generally paralyzed in chronic smokers.
This is because the toxins( the TAR) in the cigarette destroy the mucocilliary escalator that trapped inhaled pathogens in air as it passes through the bronchi and push them up with phlegm out of the respiratory tract.
Therefore ,with the loss of cilirary function, pathogens are retained in the lungs leading to respiratory tract infections
Answer:
Dopamine
Explanation:
Parkinson’s disease is a degenerative, progressive disorder that affects nerve cells in parts of the brain called the basal ganglia and the substantia nigra.
The neurotransmitter dopamine is produced by nerve cells in the substantia nigra and these nerve cells function in relaying information from the brain that plan and control body movement. In Parkinson's disease, the dopamine-producing nerve cells of the substantia nigra begin to die off . Symptoms such as tremor, impaired movement, stiffness, and balance problems occur when the loss of nerve cells is about 80%
