Contact with a minute quantity of blood is sufficient for infection with hepatitis B virus
Indicate whether the statement is true or false
TRUE
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Fairy shrimp are a type of crustacean that is typically found in temporary ponds across the
world, including desert areas and ice-covered mountain lakes. They swim with their ventral side up (i.e., “upside down”) using their leaf-like swimming legs as paddles. Based on this description, fairy shrimp have a __________ ecological niche
a. broad b. narrow c. variable d. herbivorous
Which of the following statements is false?
a. Tobacco smoking is the most serious risk factor for cardiovascular disease. b. Until age 50, males have a greater risk of a heart attack than females. c. Hypertension is called the silent killer. d. In atherosclerosis, the diameter of the lumen of a blood vessel decreases. e. If a blood clot becomes dislodged and travels in the bloodstream, it is called a thrombus.
The blood pressure in the veins of your toe is most likely higher than the blood pressure in the arteries
of your little finger. ____________________ Indicate whether the statement is true or false.
Assume you are growing bacteria on a lipid medium that started at pH 7. The action of bacterial lipases should cause the pH of the medium to
A) increase. B) decrease. C) stay the same.