The phenomenon known as a "red tide" can cause ________ in humans.
A. hepatitis
B. dysentary
C. confusion and coma
D. fever and intestinal cramping
E. paralysis
Answer: E
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Diapedesis is the movement of white blood cells through intact blood vessel walls into surrounding body tissue. It typically happens when an area of the body is injured or damaged, and an inflammation response is required. What role would you expect cell adhesion molecules to play in this process?
A. Cell adhesion molecules will allow the white blood cells to cling to one another to form a migrating clot. B. Cell adhesion molecules help white blood cells adhere to the blood vessel wall so that they can migrate across the wall and infiltrate into the underlying tissue. C. Cell adhesion molecules will allow the white blood cells to attach to the injured area so they become immobile. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about the role of adhesion molecules in white blood cell movement? What other information is related to the question? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
The statements about transport of Ca2+ from the cytosol (low Ca2+ concentration) into the endoplasmic reticulum (high Ca2+ concentration) are true EXCEPT which of the following?
A. Calcium movement involves the use of a pump. B. Calcium movement involves active transport. C. Calcium movement occurs by facilitated diffusion using a transporter protein. D. Calcium movement requires energy. E. Calcium movement occurs through a transmembrane protein.
The classical hypothesis of speciation is comprised of a three-step process. What are the three steps?
What will be an ideal response?
Due to recent changes in blood pressure guidelines, a reading of 120/80 is now considered to be:
a. a low normal reading. b. a high normal reading. c. prehypertensive. d. hypotensive.. e. hypertensive.