Probably the Most Serious Environmental Factor Limiting Crop Productivity Is

question 29

Multiple Choice

Probably the most serious environmental factor limiting crop productivity is which of the following?

• A)use of GM plants
• B)evolution of pests resistant to pesticides
• C)increasing salinity of soils
• D)invasion of weeds from tropical areas
• E)None of the above is correct.

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Definitions:

Estivation

A period of dormancy or inactivity in some animals during hot or dry periods.

Acclimatization

The process by which an organism adjusts to gradual changes in its environment, improving its performance over time.

Migration

(1) The periodic or seasonal movement of an organism (individual or population) from one place to another, usually over a long distance.

Ectotherms

Organisms that regulate their body temperature through external sources, such as sunlight or a heated rock surface, rather than internal metabolic processes.