Biology SOL Review Disease Evolution & Genetics

The fungi absorb water and minerals and pass them on to the plant and receive carbohydrates from the plant. This is an example of — 

• mutualism
• competition
• predation
• parasitism

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A symbiotic relationship in which one organism benefits while one organism is harmed is known as:   a.  antagonism b.  commensalism c.  parasitism d.  mutualism

• antagonism
• commensalism 
• parasitism
• mutualism

Organisms in a typical backyard are likely to include bacteria, grass, shrubs, trees, insects, spiders, birds, and small mammals. All these organisms make up — 

• population
• troop
• community
• ecosystem

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In an aquatic habitat, an example of organisms from the pioneer community would be — 

• grass
• water lilies
• water reeds
• algae

Which of the following organisms has the greatest risk of losing a population due to the death of only a few individuals? 

• Bacteria
• Flies
• Elephants
• Rats

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Which of these could not be a virus? 

• F
• G
• H
• J

Which of these could be successfully treated with antibiotics?  

• Strep throat
• Common cold
• HIV
• Influenza

People who have been exposed to excessive radiation often experience mutations. If these mutations only occur in somatic (body) cells, these people may  

• experience an increased risk of cancer 
• experience difficulties replicating RNA
• pass on these mutations to their offspring
• develop entirely new DNA sequences in all cells 

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An important difference between viruses and living cells is that viruses —

• cannot reproduce without host cells
• cannot mutate but cells can
• contain more nuclei than cells
• need an energy source but cells do not 

Which characteristic do viruses possess in common with living cells? 

• They contain nucleic acids such as DNA or RNA.
• They contain a nucleus and organelles.
• They make their own food.
• They are inactive outside the body of living cells.