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Evolution > Chapter 12: The Evolution of Life History and Parental Care > Flashcards

Chapter 12: The Evolution of Life History and Parental Care Flashcards

1
Q

life history

A

the investment an organism makes in growth and reproduction
→life history traits include an organism’s age at first reproduction, the number and size of offspring produced, and lifespan

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2
Q

senesence

A

the deterioration in the biological functions of an organism as it ages; mainly decline in fertility

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3
Q

rate of living theory

A

theory of why selection doesn’t oppose senesence; aging caused by accumulation of cellular damage because toxins and errors in DNA will increase until reaching a limit (resulting in death)
predictions:
1. you can’t evolve longer life span
2. metabolic rate is linked to aging rate [wrong]

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4
Q

evolutionary trade-off theory

A

another theory on why selection doesn’t oppose selection; wonders why selection does not produce longer life spans….it doesn’t because living after reproducing isn’t really that beneficial overall

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Evolution (11 decks)

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