The severity of a thermal burn correlates directly with:
A) the body's ability to effectively dissipate significant heat energy and the patient's general state of health.
B) the presence of any underlying medical problems, the duration of exposure, and the temperature of the heat source.
C) the duration of exposure, the physical size of the patient, and the presence of concomitant traumatic injuries.
D) the temperature of the heat source, the amount of heat energy possessed by the object or substance, and the duration of exposure
Answer: D) the temperature of the heat source, the amount of heat energy possessed by the object or substance, and the duration of exposure
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Unlike single-celled organisms that have direct contact with their external environment, most cells in a multicellular
organisms do not have direct contract with their external environment. How do these cells acquire nutrients and eliminate wastes?
a. by active and passive transport between the basal lamina and the interstitial fluid b. by active and passive transport between the basal lamina and the plasma c. by active and passive transport between the intracellular fluid and the interstitial fluid d. by active and passive transport between the intracellular fluid and the plasma e. through gap junctions between the intracellular fluid and the plasma
Researchers can deliver genes into plants by using ____
a. PCR b. DNA sequencing c. electric or chemical shocks d. gel electrophoresis e. DNA segmentation
Some ions move across a membrane using ion channel proteins that are open all the time. Others use _____ ion channel proteins which have the ability to open and close
Fill in the blank(s) with the appropriate word(s).
The steps of respiration occur in different parts of the cell. Where in the cell does glycolysis occur?
a. Chloroplast b. Mitochondria c. cytoplasm d. nucleus