Contact with a minute quantity of blood is sufficient for infection with hepatitis B virus

Indicate whether the statement is true or false


TRUE

Biology & Microbiology

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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.

Biology & Microbiology

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.

Biology & Microbiology

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

Biology & Microbiology

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.

Biology & Microbiology