Soils Formed in Cold, Dry Climates Have Shallow Topsoil with Less

question 9

True/False

Soils formed in cold, dry climates have shallow topsoil with less humus.

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Definitions:

Selection

In evolutionary biology, a process by which certain traits become more or less common in a population due to the differential reproductive success of organisms with those traits.

Antigenic Drift

Describes natural selection on seasonal influenza viruses that alters the structure of surface proteins, allowing them to evade the antibody-mediated immunity induced during previous infections or vaccinations.

Flu Vaccine

A vaccination that protects against the influenza virus, redeveloped each year to combat the seasonally evolving strains.

Resistance

Resistance refers to the capacity of pathogens to defend against antibiotics or other drugs.