Artificial Selection & Immunity

Artificial selection is also known as

• natural selection

• selective hearing

• genetic manipulation

• selective breeding

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When humans select desirable traits to be passed down to offspring

• natural selection

• artificial selection

The primary difference between natural and artificial selection is

• In natural selection the “pressure” comes from the environment; In artificial selection the “pressure” comes from humans (or another species).

• In artificial selection the “pressure” comes from the environment; In natural selection the “pressure” comes from humans (or another species).

• Natural selections is when humans breed the animal; Artificial selection is when humans direct genes directly.

• They are different terms for the same concept.

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These cause variations.

• mutations

• adaptations

• a desire to change

• breeding

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Disease-causing microorganism, such as a bacterium or virus.

• pathogen 
• allergen
• prion 
• antigen 

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Antibiotics work against most

• Bacteria
• Bacteria & Viruses
• Vaccines
• Viruses

Special proteins produced by the body to attack foreign invaders.

• antibodies
• antigen

Vaccines contain weakened or dead parts of antigens. 

• True
• False

__________ immunity is when the bodies makes its own antibodies from exposure to pathogens or vaccination.

• passive
• active
• cell mediated
• false

Which is an example of passive immunity?

• people being vaccinated against disease
• people taking vitamins to boost their immune response
• people receiving antibodies from their mothers before birth
• people producing antibodies against organisms that cause diseases they have had previosuly