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Spiders

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Spiders are arachnids (and not insects); they are related to scorpions and ticks. ... Daddy-long-legs eat insects and worms, and some kinds also eat fungi and rotting ... – PowerPoint PPT presentation

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Title: Spiders


1
Spiders
  • A look at some of our strange and helpful friends

2
Spider Facts
  • There are many different types of spiders that
    live all over the Earth in practically every type
    of habitat. They come in colors including black,
    brown, white, gray, red, yellow, green, and
    orange. Most spiders live for about a year, but
    the tarantula can live for 15 years. Spiders
    range in size from barely visible to many inches
    across. Spiders are arachnids (and not insects)
    they are related to scorpions and ticks. Young
    spiders are often cannibals (they will eat each
    other), and females often eat the male after
    mating. Spiders are carnivores (meat-eaters)
    most eat insects (like moths and crickets), but
    the larger spiders, like tarantulas, will eat
    many other small animals.
  • Webs Spiders produce silk in abdominal glands
    (called spinnerets). Spiders use silk to make
    webs and traps (for catching prey), shelter, life
    lines, cocoons, and diving bells (for those
    spiders who hunt underwater). The tips of the
    spider's legs are oily this oil keeps them from
    getting trapped in their own webs. Weight for
    weight, spider's silk is stronger than steel.

3
Spider Anatomy and Life Cycle
  • Anatomy All spiders have eight legs each leg
    has 2 to 3 tiny claws at the end. They have a
    two-part body and strong jaws (usually with
    poisonous fangs). They have a hard exoskeleton
    and not an internal skeleton.
  • Life Cycle After mating with a male, the female
    spider produces an egg sac that can contain up to
    a thousand tiny spider eggs. The egg sac is made
    of silk, and the color varies from species to
    species. In some species, the female spider
    carries the egg sac on her spinnerets or in her
    jaws until the eggs hatch. In other species, the
    egg sac is hidden under a rock, attached to a
    plant stalk, or encased in a web. Tiny
    spiderlings (baby spiders) hatch from the eggs -
    they look like tiny versions of an adult spider.
    Some spiderlings are on their own and receive no
    care from their mother. Other spiders climb onto
    their mother's back after hatching, where she
    feeds them. In some species, the mother dies when
    the young are ready to go off on their own, and
    the spiderlings eat her carcass.

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Spider Anatomy
6
Spider Anatomy Definitions
7
Label the Spider Body Parts
8
Daddy Long Legs
  • Close, but No SpiderA Daddy-long-legs isnt a
    spider, though it looks a lot like one. It
    doesnt have a waist between its front body part
    and its abdomen. Its legs are longer and thinner
    than a spiders, and it carries its body hung
    low. Daddy-long-legs eat insects and worms, and
    some kinds also eat fungi and rotting fruit.

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