Rosalind Franklin Died from Ovarian Cancer at the Age of 37.Her

question 56

Multiple Choice

Rosalind Franklin died from ovarian cancer at the age of 37.Her cancer was probably caused by DNA mutations that arose from _____.

• A)extensive exposure to long wavelength radiation
• B)contaminated DNA samples
• C)chemical exposure
• D)unrepaired DNA replication errors
• E)extensive exposure to x-rays

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Definitions:

Energy Pyramid

For an ecosystem, a graphic depicting the energy that flows through each trophic level in a given interval.

Trophic Level

The rank in the food chain of an organism, determined by the number of energy-transfer steps to that level.

Biomass

The total mass of organisms in a given area or volume, an important energy source and ecological metric for understanding ecosystems.

Biogeochemical Cycle

A nutrient moves among environmental reservoirs and into and out of food webs.