The immediate causes of behaviors, such as genetic and physiological mechanisms are called __________ causes.
A. proximate
B. ultimate
C. internal
D. physiochemical
E. internal and physiochemical
A. proximate
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Hydroponic culture is the process of ____
a. growing plants in pure water mixed with carefully measured amounts of specific minerals b. irrigation of dry areas to improve mineral absorption by plants c. growing plants in ponds and lakes to improve their access to water, allowing the plants to place more resources into the shoot system d. irrigation of dry areas to prevent crop plants from wilting e. growing plants with specific hydrocarbons added to the soil to test the effect on plant growth
Immediately after a meal, which one of the following is first used by cells as an energy source?
A) fat
B) glycogen
C) lactic acid
D) amino acids
E) glucose
Color deficiency is more common in men than in women because
A) crossing over occurs only in women. B) the gene is located on the Y chromosome. C) men have only one X chromosome. D) women cannot inherit the gene from their fathers. E) men get more copies of the gene than do women.
Which element's isotope is commonly used to determine when biological samples such as fossils, were formed?
A. nitrogen B. sulfur C. oxygen D. carbon E. hydrogen