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Ecology > Chapter 7: Life History > Flashcards

Chapter 7: Life History Flashcards

1
Q

Life History

A

The major events relating to an organism’s growth, development, reproduction, and survival

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2
Q

Life History Strategy

A

Shaped by the way organisms divide energy and resources between growth, reproduction, and survival

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3
Q

Fitness

A

Ability to survive, reproduce viable offspring

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4
Q

Phenotypic Plasticity

A

The ability of a single genotype to produce different phenotypes under different environmental conditions

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5
Q

Asexual Reproduction

A

No increased genetic diversity: Binary Fission, Budding, Fragmentation, Spores, Parthenogenesis

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6
Q

Binary Fission

A

Duplication of DNA and cytokinesis

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7
Q

Budding

A

The new organism from the outgrowth due to cell division at a particular site

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8
Q

Fragmentation

A

Organism splits into fragmentation upon maturation

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9
Q

Spores

A

Tough dormant structures that break upon to reproduce

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10
Q

Parthenogenesis

A

Embryo developments from an unfertilized egg

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11
Q

Sexual Reproduction

A

Meiosis (n) -> Fertilization (2n)

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12
Q

Halpoid Parthenogenesis

A

Meiosis -> Oocyte -> Haploid zygote (n)

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13
Q

Automixis

A

Meiosis -> Oocyte (n) -> fuses/replicates (2n) -> Zygote

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14
Q

Apomixis

A

Mitosis -> Female Egg (2n) -> Diploid Egg

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15
Q

Simultaneous Hermaphroditism

A

Both female and male sex organs can reproduce at the same time

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16
Q

Sequential Hermaphroditism

A

Organism changes sex at some point in its life

17
Q

Protandry

A

Male -> Female

18
Q

Protogyny

A

Female -> Male

19
Q

Bidirectional Hermaphroditism

A

Switch back and forth

20
Q

Sexual Dimorphism

A

Two phenotypically different sexes

21
Q

Viviparous

A

Life develops in the parent

22
Q

Oviparous

A

Eggs outside

23
Q

Ovoviviparous

A

Eggs inside

24
Q

High Investment Parental Care

A

Care of eggs, care after hatching

25
Q

r-selected species

A

high growth rates, smaller, short-lived

26
Q

k-selected species

A

slow population growth, approaching carrying capacity, larger, longer lives

Ecology (11 decks)

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