Biodiversity State Lab Quiz Review

An ecosystem will most likely remain stable if

• it has more predators than prey

• it has a high level of biodiversity

• biotic factors decrease

• finite resources decrease

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A stable ecosystem can have high biodiversity because each species in that ecosystem

• occupies a difference niche

• inhabits a different environment

• is part of a different community

• lives in a different biosphere

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Which causes the most loss of biodiversity on Earth?

• air pollution

• habitat destruction

• the greenhouse effect

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Based on the results of gel electrophoresis shown, which of the following is a valid conclusion that can be drawn from these results?

• Individual A can be linked to the crime scene.

• Individual B can be linked to the crime scene.

• Individual C can be linked to the crime scene.

• None of the individuals can be linked to the crime scene.

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Which amino acid corresponds to the RNA molecule containing the codon U-A-C?

• valine

• lysine

• leucine

• tryosine

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These materials are used to carry out the technique known as

• DNA staining

• genetic engineering

• paper chromatography

• glucose testing

Which chemicals are used to cut DNA into fragments for a gel electrophoresis procedure?

• enzymes

• molecular bases

• hormones

• ATP molecules

An ecosystem with greater biodiversity has increased ____________________ .

• Balance

• Stability

• Equilibrium

• All of the above

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Weighing out the pros and cons of a decision, and ultimately sacrificing one thing

for another is known as:

• poor land use

• a trade-off

• conservation

• a technological fix

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A decrease in the biodiversity of an ecosystem usually leads to

• an increase in predator and prey populations

• the culmination of material cycling

• a decrease in stability

• an increase in dynamic equilibrium

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