Which Ecosystems Have the Slowest Turnover Rates of Elements (The

question 26

Multiple Choice

Which ecosystems have the slowest turnover rates of elements (the greatest mean residence times) ?

• A) Boreal forests with large nutrient pools and low rates of litter input
• B) Temperate coniferous forests with low levels of nitrates in the soil
• C) Tropical forests with small nutrient pools and high rates of litter input
• D) Chaparrals with low amounts of moisture in the soil

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Definitions:

Thalidomide

A medication that caused birth defects when it was given to pregnant women during the 1950s and 1960s, notably used initially as a sedative and for morning sickness.

Pregnant Women

Refers to females who are in the state of carrying a developing embryo or fetus within the uterus.

Monozygotic Twins

Twins that are genetically identical because they were formed from a single fertilized egg that split into two, sharing 100% of their DNA.

Dizygotic Twins

Also known as fraternal twins, they develop from two separate eggs fertilized by two different sperm cells, resulting in genetically distinctive siblings.