Answer the following statements true (T) or false (F)
1. In osmosis, water moves from an area of higher to lower solute concentration.
2. If an animal has a concentration of one substance in its body identical to the concentration of that substance in the environment, this will also be the case with all other substances (i.e., if it conforms with one substance, it will conform with all substances).
3. Homeostasis refers to the property of maintaining particular physiological variables such as body temperature and solute concentrations absolutely constant.
4. Positive feedback loops are more common than negative feedback loops in animal physiological function.
1. FALSE
2. FALSE
3. FALSE
4. FALSE
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The type of bacterial meningitis that becomes epidemic among young adults is caused by
A) Streptococcus agalactiae. B) Streptococcus pneumoniae. C) Haemophilus influenzae. D) Neisseria meningitidis. E) Listeria monocytogenes.
A researcher decides to test the scientific validity of the common phrase "An apple a day keeps the doctor away." What would be a valid hypothesis to investigate this specific question?
A. The daily consumption of a single apple does not change the number of visits to the doctor. B. Eating one apple every day is good for you. C. Those who consume apples have longer lifespans than those who do not consume apples. D. Eating apples decreases the frequency of contracting a cold. E. Apples are high in vitamin C.
Which of the following is NOT a characteristic of nerve tissue?
What will be an ideal response?
The greatest metabolic advantage of a fish's two-chambered heart is
A. its ability to stay full of blood even as it is emptying into the conus arteriosus. B. its ability to pump blood to the gills for gas exchange before the blood is pumped to the remaining areas of the body. C. its ability to pump blood under high pressure to all areas of the fish's body. D. its ability to keep oxygen-rich blood in one chamber separate from oxygen-poor blood in the other chamber. E. its ability to maintain a constant blood pressure in the fish.