__________ are the powerhouses of the cell because they produce cellular energy
Fill in the blank(s) with correct word
Mitochondria
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Which of the following is/are known risk factor(s) for developing osteoporosis?
A. smoking B. calcium deficiency C. excessive caffeine consumption D. all of the above
Answer the following statements true (T) or false (F)
1. The pinkish hue of individuals with fair skin is the result of the crimson color of oxygenated hemoglobin (contained in red blood cells) circulating in the dermal capillaries and reflecting through the epidermis. 2. Hair growth and density are influenced by hormones, nutrition, and, in some cases, lifestyle. 3. When a patient is said to have "third-degree burns," this indicates that the patient has burns that cover approximately one-third of the body. 4. Sweat glands continuously produce small amounts of sweat, even in cooler temperatures. 5. The shock-absorbing pads between the vertebrae are formed of fibrocartilage.
The endocrine system comprises a network of ___________ that produce and secrete chemical messengers called ____________.
A) glands, hormones B) nodes, catecholamines C) vessels, leukotrienes D) synapses, neurotransmitters
What is the term for the exchange of gases between systemic capillaries and tissue cells?
A. Pulmonary ventilation B. Systemic gas exchange C. Aerobic respiration D. Alveolar gas exchange E. Gas transport