Which of the following is the best description of decomposition?
a. breaking down inorganic molecules such as carbon dioxide and water into organic molecules such as carbohydrates, lipids, and proteins
b. building organic molecules such as carbohydrates, lipids, and proteins from inorganic molecules such as carbon dioxide, water, and nitrogen-containing compounds
c. building macromolecules from smaller organic molecules
d. breaking down organic molecules into inorganic molecules
e. a process undertaken by producers in an ecosystem
D; Decomposers break down organic matter into inorganic materials that can be cycled back to the producers.
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In standardized DNA fingerprinting used in the United States, ____
a. 13 different noncoding loci are examined b. 13 different coding loci are examined c. only loci that do not vary among individuals are examined d. only long tandem repeats loci are examined e. the sequence of short tandem repeats is determined
Which of the following statements is false?
a. Males often help with parenting in cases where females compete over males. b. There is often a ready-made harem in cases where males compete for access to females. c. Sexual selection through competition for mates leads to evolutionary change. d. Reproductive success is based upon the same criteria for both sexes. e. Males that do not have territorial or sexual status sometimes employ strategies that allow them to mate.
The use of multiple forms of pest control including biological, chemical, and the planting of pest-resistant crops is a strategy commonly called ________
A) intermediate species control B) integrated pest management C) multilevel systems approach D) none of the above
Bioremediation is:
A. the use of microorganisms to treat open wounds B. the use of bacteria to attack cancer cells C. the use of bacteria in the production of biofuels D. the use of microorganisms to attack pathogenic bacteria E. the use of microorganisms to break down harmful substances in the environment