Why is terrestrial productivity higher in equatorial climates?
A) Productivity increases with temperature.
B) Productivity increases with water availability.
C) Productivity increases with available sunlight.
D) The answer is most likely a combination of the other responses.
Answer: D
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What is the correct order of the components of a negative feedback loop?
a. stimulus ? integrator ? sensor ? effector(s) ? compensatory response b. stimulus ? sensor ? integrator ? effector(s) ? compensatory response c. stimulus ? effector(s) ? integrator ? sensor ? compensatory response d. sensor ? integrator ? stimulus ? effector(s) ? compensatory response e. sensor ? stimulus ? integrator ? effector(s) ? compensatory response
While a backhoe operator is helping to clear land that will be used for a poultry farm, the equipment opens up a hidden chamber in which old electrical transformers have been buried. The operator knows that transformers contain PCBs
Why should this person warn the owners of the land?
Which polysaccharide is produced by both fungi and arthropods?
A) Chitin B) Glucose C) Cellulose D) Glycogen E) Fructose
Data collected to date indicate that
A) humans and marine mammals cannot be infected by the same pathogens. B) marine mammals do not get infectious diseases. C) new species of bacteria will not be discovered in wild animals. D) marine mammals don't have an immune system. E) None of the answers is correct.