Discontinuous Permafrost Occurs Where the Mean Annual Air Temperature

question 10

Multiple Choice

Discontinuous permafrost occurs where the mean annual air temperature

• A) is lower than -5°C.
• B) is lower than 0°C.
• C) lies between 0°C and 5°C.
• D) lies between -5°C and 0°C.
• E) is lower than -10°C.

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Definitions:

Fetus

A prenatal human between its embryonic state and birth, specifically after the major structures have begun to develop in the ninth week of pregnancy.

Fertilized Egg Cell

A cell resulting from the fusion of a male sperm cell and a female egg cell, marking the beginning of embryonic development.

Implantation

The process in which a fertilized egg adheres to the wall of the uterus, marking the beginning of pregnancy.

Ovum

A female reproductive cell or egg, which, when fertilized by a sperm, begins the process of embryonic development.