Answer:
Generalized anxiety disorder (GAD) is marked by a chronic, high-level anxiety that interferes with daily activities and relationships and is not tied to any specific threat. Panic disorder is characterized by a distinct period of intense fear or discomfort in the absence of any real danger. Phobic disorder is characterized by persistent and irrational fears of a stimulus that doesn't pose any real danger. Obsessive-compulsive disorder (OCD) is characterized by persistent and unwanted obsessions or compulsions. Posttraumatic stress disorder (PTSD) is the development of psychological disturbances following exposure to a traumatic event or situation.
Explanation:
a. True
b. False
A good indicator of efficient exercise is a good resting heart rate. This enables athletes and health buffs to meet the needs of their body with a slow heart rate. It does not take them much effort in terms of physical activity whereas those who are out of shape would exert a lot of effort to complete a task.
B. quit your normal exercise routine without any negative effects.
C. sustain a regular routine of exercise for 30-60 minutes with minimal fatigue.
D. lift very heavy weights without injuries to your joints.
b. viral
c. parasitic
d. all of the above
Answer:
C. Parasitic
Explanation:
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A. Veins have more smooth muscle tissue than arteries and capillaries.
B. Veins appear rounder in a cross section than arteries and capillaries.
C. Veins have valves which are absent in arteries and capillaries.
D. Veins have thinner inner walls than arteries and capillaries
Arteries are the main branches and veins are smaller and thinner to transport blood to other parts of the body that arteries aren't.
Two of the primary categories of blood vessels in the body are arteries and veins. Blood channels called arteries transport oxygen-rich blood from the heart to the rest of the body.
Blood channels called veins transport the body's low-oxygen blood back to the heart for reoxygenation.
Blood with more oxygen is carried to tissues by systemic arteries, while blood with less oxygen is carried from the heart to the lungs, where it can be replenished.
Therefore, Arteries are the main branches and veins are smaller and thinner to transport blood to other parts of the body that arteries aren't.
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