Hexapoda 2011 características gerais[1]
Transcript of Hexapoda 2011 características gerais[1]
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Hexapoda
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Importantes áreas de estudo para
indentificar as principais ordens de
insetos - Tagmose
Cabeça Thorax Abdomen Tórax Abdomen
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Hox Genes
–
Homologia
serial
genética
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CABEÇA (Inserção com o tórax)
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Importantes áreas de estudo para
indentificar as principais ordens de
insetos – Cabeça (aparelho bucal e
estruturas sensoriais)
Head Thorax Abdomen
3 pairs of legs
Cabeça Antenas
Olhos
compostos
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Estruturas sensoriais cefálicas
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Antenas
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Head Thorax Abdomen
3 pairs of legs
Importantes áreas de estudo para
indentificar as principais ordens de
insetos – Tórax (pernas e asas)
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Pernas
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Asas
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Membranosas
Membranosas
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Élitros
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Tégmina ou pergaminaceas
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Hemi-élitros
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Head Thorax Abdomen
3 pairs of legs
Importantes áreas de estudo para
indentificar as principais ordens de
insetos – Abdomen (cercos e
ovopositor)
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Evolução do
aparelho
Ovopositor
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Sistema digestório
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Hábito alimentar
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Sistema Respiratório
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Sistema Circulatório
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Reprodução - Corte
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Cópula em abelhas
U t
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Desenvolvimento
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Regulation of insect
metamorphosis.
(A) Structures of juvenile
hormone, ecdysone,
and the active molting
hormone 20-
hydroxyecdysone.
(B) General pathway of
insect metamorphosis.
Ecdysone and
juvenile hormone
together cause molts
to keep the status quo
and form another
larval instar. When
there is a lower
concentration of
juvenile hormone, the
ecdysone-induced
molt produces a pupa.
When ecdysone acts
in the absence of
juvenile hormone, the
imaginal discs
differentiate, and the
molt gives rise to the
adult. (After Gilbert
and Goodman 1981.)
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Ametábolos
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Paurometábolos - Hemimetábolos
Naíade
Naíade
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Holometábolos
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Modes of insect
development. Molts are
represented as arrows.
(A) Ametabolous (direct)
development in a
silverfish. After a brief
pronymph stage, the insect
looks like a small adult.
(B) Hemimetabolous (gradual)
metamorphosis in a
cockroach. After a very
brief pronymph phase, the
insect becomes a nymph.
After each molt, the next
nymphal instar looks more
like an adult, gradually
growing wings and genital
organs.
(C) Holometabolous (complete)
metamorphosis in a moth.
After hatching as a larva,
the insect undergoes
successive larval molts
until a metamorphic molt
causes it to enter the pupal
stage. Then an imaginal
molt turns it into an adult.
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Cuidado à prole
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Cuidado à prole