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51 Cards in this Set
- Front
- Back
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insect nerve cord located where?
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ventral side
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insect "heart" located on what side?
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dorsal side
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How many pairs of legs does an insect have?
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3 pair = six legs
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What are the three body regions of an insect? (tagmata)
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head
thorax abdomen |
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How many insects species are there?
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1,000,000 are currently known
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Insect species represent how much of all known life? of known animals?
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50%
75% |
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insects feed on plants in a variety of ways...
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chewing, piercing/sucking, eating plant tissues, movement of pollen
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_________ are organisms that kill and consume other animals, usually killing multiple individuals in their lifetime.
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Predators
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____kill their host, almost always a single individual, while living in or on that host.
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Parasitoid
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___feed on host w/out killing the host. *often responsible for transition of disease
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Parasites
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_______ recycle organic matter into abiotic component of the environment.
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Scavengers
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-less food for insectivorous animals
- more odor -no pollinators -release of organisms controlled by insects -change in farming methods |
consequences of insect disappearance
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Importance of insects are...
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-Nutrient cycling
-Plant reproduction -community structure/population dynamics -Food Web |
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What is an insect?
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An arthropod with
*external skeleton, 3 distinct body regions, 3 pair of segmented legs -1 pair sensory antennae, usually 1pair of compound eyes, 1 or2 pair of wings (SOME) |
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The amalgamation of groups of segments into functional units
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Tagmosis
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The compound eye contains hundreds to thousands of ________, each with its own lens forming a distinct image.
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Ommatidia
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____ may be present.
-integrate light over large visual field, sensitive to light. |
Ocelli
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What has low resolution, but can see ultraviolet light?
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Insect eye
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Important for odor detection...
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Antennae
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cursorial leg used for
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running
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Raptorial leg used for...
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catching
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saltatorial leg used for...
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jumping
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fossorial leg used for...
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digging
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natatorial leg used for...
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swimming
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The Labrum, Mandible, Maxilla, Labium are
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Chewing mouthparts (orthoptera)
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Setaceous antennae...
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cicada
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filiform antennae...
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cockroach
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moniliform antennae...
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termite
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calvate antennae...
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ladybird
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Capitate antennae
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picnic beetle
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Serrate antennae...
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click beetle
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pectinate antennae
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glowworm beetle
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plumose antennae
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mosquito
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Aristate antennae...
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house fly
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Lamellate antennae
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June Beetle
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geniculate antennae
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ant
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Labrum, Mandible, Maxillary Palp, labial palp
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Chewing Mouthparts (coleoptera)
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Fringed wings used for
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carried by wind
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hairy wings good for
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fly fishing
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scaly wings
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color/camo
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Haltere used for
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balance
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sound production from wings deals with
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reproduction
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Mouthpart diversity reflects
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diet
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antennae diversity reflects
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communication
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Leg diversity reflects
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locomotion and habitat use
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wing diversity reflects
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locomotion, communication, and defense
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Batesian Mimicry
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evil model and palatable model
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Mullerian Mimicry
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everyone is evil and they all appear similar
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Insect size range is
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0.1mg to 30g
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why insects are so small...
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-can live in places where large animals can't
-can be carried to new areas by wind -very active |
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biggest problem with insects being so small
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high surface area/ volume ratio
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