Robert Costanza of the University of Vermont Estimates the Monetary

question 89

Multiple Choice

Robert Costanza of the University of Vermont estimates the monetary worth of the earth's ecological services per year at which of the following?

• A)$150 billion
• B)$500 billion
• C)$1.5 trillion
• D)$33 trillion
• E)$500 trillion

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Definitions:

Hemizygous

Possessing only one allele for a particular locus; a human male is hemizygous for all X-linked genes. Compare with homozygous and heterozygous.

Map Units

Units used in genetics to measure genetic linkage and represent the distance between genes on a chromosome, correlating with the frequency of recombination.

Loci

Specific fixed positions on chromosomes where genes or genetic markers are located.

Chromosome

Chromosomes are long, thread-like structures made of DNA and proteins, found in the nucleus of most living cells, carrying genetic information in the form of genes.