When sampling a species that has clumped distributions, which approach listed below is best?
A) sampling at random locations
B) counting every individual
C) calculating an ecological density
D) assuming a uniform distribution
D
You might also like to view...
Fucus, a conspicuous intertidal alga, belongs to the phylum:
1.Chlorophyta 2.Rhodophyta 3.Phaeophyta 4.Anthophyta
According to the IUCN's data, a smaller percentage of bird species than of coral reef-dwelling fish species are endangered.
Answer the following statement true (T) or false (F)
Tortoises in the Galápagos possessed neck lengths unique to each island. Neck lengths appear to be an adaptation to which selective agent?
A. reproductive barriers used to produce offspring B. ease in finding pools of drinking water C. type of vegetation available to eat D. male competition for females E. defense against predators
Please choose the class of chemical agents to which quaternary ammonium compounds belong.
A) Detergents B) Oxidizing agents C) Halogens D) Phenolics E) Aldehydes