The Presence of Altruistic Behaviour Is Most Likely Due to Kin

question 39

Multiple Choice

The presence of altruistic behaviour is most likely due to kin selection, a theory maintaining that

• A)aggression between sexes promotes the survival of the fittest individuals.
• B)genes enhance survival of copies of themselves by directing organisms to assist others who share those genes.
• C)companionship is advantageous to animals because in the future they can help each other.
• D)critical thinking abilities are normal traits for animals and they have arisen, like other traits, through natural selection.
• E)natural selection has generally favoured the evolution of exaggerated aggressive and submissive behaviours to resolve conflict without grave harm to participants.

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Definitions:

Frequency-Modulated

Pertains to a method of encoding information using the frequency variation of a carrier wave.

Conjugation

A form of genetic transfer between bacteria involving direct, physical contact and the transfer of DNA.

Lipid-Soluble Hormones

Hormones that can easily pass through cell membranes because they are soluble in lipids, allowing them to directly interact with cells’ internal mechanisms.

Cholesterol

A waxy, fat-like substance found in all cells of the body, necessary for the formation of cell membranes, certain hormones, and vitamin D.