Which Measurement Represents the Smallest Quantity

question 75

Multiple Choice

Which measurement represents the smallest quantity?

• A)2950 ng
• B)2.95 × 10^-4 g
• C)2.95 × 10³ μg
• D)2.95 × 10^-6 kg
• E)29.5 mg

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Definitions:

Biological Diversity

The variety and variability of life on Earth, including diversity within species, between species, and of ecosystems.

Biodegradable

Materials that can be broken down into natural elements by microorganisms over time, without harming the environment.

Decomposers

Organisms such as fungi and bacteria that break down dead organic material, returning nutrients to the ecosystem.

Biomass Pyramid

A graphical representation showing the relative amount of living organic matter available at each trophic level in an ecosystem.