Postindustrial societies have the majority of their work force engaged in tertiary and quaternary activities
Indicate whether this statement is true or false.
TRUE
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What affect does a low body temperature have on an animal? a. Sexual maturity happens sooner
b. Decreased metabolic rate. c. Shorter lifespan. d. The need for more food consumption.
__________ prevent fish sperm from fertilizing frog eggs
a. Energetic barriers b. Biological barriers c. Postzygotic barriers d. Ecological barriers e. Prezygotic barriers
You have isolated a bacterium that grows in a medium containing an organic substrate and nitrate in the absence of oxygen. The nitrate is reduced to nitrogen gas. You can be sure that this bacterium is
A) gram-positive. B) using anaerobic respiration. C) a chemoautotroph. D) a photoautotroph. E) a photoheterotroph.
The graph below can be used to understand the forces underlying the movement of fluid between the blood and the interstitial fluid. What is a true statement concerning these processes?
A. In people suffering from severe liver disease or protein starvation, the fluid flow in region B is increased. B. Sodium ions contribute significantly to the movement of fluid in region B. C. Edema results from reduction of fluid flow in region A. D. Fluid leaves the blood in region A and returns to the blood in region B. E. Normally, the net amount of fluid flow in region A is less than the net amount of fluid flow in region B.