When two species battle for resources until one is driven locally extinct, the process is called
a) parasitism
b) mutualism
c) competitive exclusion
d) character displacement
e) resource partitioning
Answer: c) competitive exclusion
You might also like to view...
The terms Krebs cycle, tricarboxylic acid cycle, and citric acid cycle all refer to the same process.
Answer the following statement true (T) or false (F)
A gram-positive bacillus, which grew on Tinsdale agar, is esculin hydrolysis–negative, urease-positive, and nonlipophilic. The organism can be identified as:
a. C. diphtheria. b. Corynebacterium glucuronolyticum. c. Corynebacterium xerosis. d. Corynebacterium ulcerans.
Materials in sedimentary cycles
a. pass through both a solid and a gaseous phase. b. are never present as gases in the ecosystem. c. are present as liquids in the earth but as gases in the atmosphere. d. are most abundant in the atmosphere. e. cycle relatively quickly through ecosystems.
Which of the following statements concerning endocytosis is TRUE?
A) This process occurs in both prokaryotes and eukaryotes. B) Phagocytosis is a type of endocytosis in which liquids are brought into the cell. C) Endocytosis produces a structure called a food vesicle. D) Waste products and secretions are exported from the cell during endocytosis. E) Endocytosis is a form of passive transport.