Question

which of the following is not one of the major controllable risk factors known to increase the likelihood of cardiovascular disease?
high ldl cholesterol
tobacco use
vitamin deficiency
hypertension
46
the two most common forms of chronic lung disease are asthma and
anaphylaxis.
covid-19.
pneumonia.
copd.
47
the human brain cycles into two main states of sleep. they are
nrem sleep and rem sleep.
shallow sleep and deep sleep.
beta brain waves and alpha brain waves.
stage 1 sleep and stage 2 sleep.

Explanation:

Question (Top, about cardiovascular disease risk factors):

Controllable risk factors for cardiovascular disease (CVD) are those a person can modify. High LDL cholesterol (can be managed with diet, meds), tobacco use (can be quit), and hypertension (can be controlled with lifestyle/drugs) are controllable. Vitamin deficiency is not a major controllable CVD risk factor (it's more about nutritional health, not a primary CVD risk factor like the others).

Chronic lung diseases are long - term. Asthma is chronic. COPD (Chronic Obstructive Pulmonary Disease) is also a common chronic lung disease. Anaphylaxis is an allergic reaction (acute), COVID - 19 is an acute infectious disease, and pneumonia can be acute or chronic but is not one of the two most common chronic lung diseases with asthma.

The two main states of human sleep are NREM (Non - Rapid Eye Movement) sleep and REM (Rapid Eye Movement) sleep. Shallow and deep sleep are parts of NREM. Beta and alpha brain waves are related to wakefulness/relaxation, not main sleep states. Stage 1 and 2 are stages within NREM, not the two main states.

Answer:

C. vitamin deficiency

Question 46 (about chronic lung diseases):