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Insect Biology > Lecture 5 > Flashcards

Lecture 5 Flashcards

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1
Q

Life history strategy:

A

the pattern of survival and reproduction events typical for a member of a species

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2
Q

What are features of apod larvae

A

lack true legs, worm like, poorly sclerotized

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3
Q

What are features or polypod larvae

A

caterpillar like, cylindrical body, prolegs

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4
Q

What are featurss of oligopod larvae

A

lack prolegs, functional thoracic legs, prognathous mouthparts

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5
Q

What is pupation

A

the molt into the pupal instar

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6
Q

What is a pharate

A

fully developed adult within the pupal cuticle

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7
Q

Different pupal types have arisen ______

A

convergently

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8
Q

What is exarate

A

appendages in the pupa not close to body

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9
Q

What is obtect

A

Appendages in the pupa cemented to body, cuticle sclerotized

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10
Q

What is a puparium

A

the sclerotized cuticle of the last larval instar

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11
Q

When does adult life begin for pupal insects

A

eclosion from the pupal cuticle

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12
Q

Do insects molt again once the adult phase is reached

A

No

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13
Q

What is teneral adult

A

the newly emerged adult, they have soft cuticle

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14
Q

an extended post reproductive life is important in distasteful aposematic insects because…

A

allows predators to learn the distastefulness of prey at periods where they are expendable

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15
Q

what is Ecdysteroid

A

arthropod steroid hormones that are responsible for molting

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16
Q

What is voltinism

A

the number of generations per year

17
Q

What is univoltine

A

one generation per year

18
Q

What is bivoltine insects

A

two generations per year

19
Q

Whatbis multivoltine/polyvoltine

A

more than two generations per year

20
Q

What is semivoltine

A

generation times in excess if one year

21
Q

Most insects pause their development in undavourable conditions and enter…

A

dormancy

22
Q

What are the types of dormancy

A

summer aestivation, winter hibernation, involve quiescence or diapause

23
Q

What is quiescence

A

lower its metabolism during a period of unfavourble conditions and then resume when favourable

24
Q

What is diapause

A

initiated in response to environmental tokens, set genetic program

25
Q

What are some triggers for diapause

A

humidity, temperature, oxygen content, barometric pressure, photoperiod

Insect Biology (7 decks)

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