The Likelihood of Polluting Groundwater with Pesticides and Plant Nutrients

question 27

Multiple Choice

The likelihood of polluting groundwater with pesticides and plant nutrients is enhanced by _____.

• A)the presence of macropores in the soil
• B)light tillage of the upper centimeter or so of soil
• C)the use of tillage to control weeds
• D)the production of oats rather than wheat
• E)conventional tillage as a choice compared with conservation tillage

---

Definitions:

Population

refers to all the members of a particular species living in a specific geographic area, capable of interbreeding.

Blood Type O

The blood group characterized by the absence of A and B antigens on red cells and the presence of anti-A and anti-B antibodies in the plasma.

Type AB Mother

Refers to a mother with AB blood type, indicating the presence of both A and B antigens on the surface of her red blood cells.

Testcross

A genetic cross between a homozygous recessive individual and an organism of unknown genotype, to determine the unknown organism’s genotype based on the offspring’s phenotypes.