Answer the following questions true (T) or false (F)
1. Capillaries are essentially water-tight vessels, so nutrients and gases diffuse in and out, but water stays put.
2. The trachea branches into left and right bronchioles.
3. When the thoracic cavity gets smaller, the pressure inside the lungs increases.
1. FALSE
2. FALSE
3. TRUE
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Which of these organisms are consumers?
a. mushroom b. worm c. tree d. cow
Gene therapy has been successful in curing ____
a. AIDS b. SCID c. diabetes d. hemophilia A e. cystic fibrosis
When two solutions that differ in solute concentration are placed on either side of a selectively permeable membrane, and osmosis is allowed to take place, the water will ________
A) exhibit a net movement to the side with lower water concentration B) exhibit a net movement to the side with higher water concentration C) exhibit a net movement to the side with lower solute concentration D) exhibit an equal movement in both directions across the membrane
Symptoms of cryptosporidiosis include
A. a circular rash that appears on the trunk and spreads to the extremities. B. loss of hair. C. a red skin papule that spreads to a large ulcer. D. headache, sweating, vomiting, severe abdominal cramps, and diarrhea. E. None of the choices are correct.