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BIOL 160 Exam #3 worksheet 2

Across
Tubal breathing system in insects
Openings on the body surface of insects to allow flow of air free from dust
Study of insects
Type of spider that releases neurotoxins and male sacrifices itself to female after mating
freeliving vegetarians, predators or scavengers (some parasites)
fixed in one place; immobile
Process of development from egg to adult through several stages
Thorax and head combined into one body part
Uses include treatment of chronic pain and binding to cancer cells in mice
species of a tropical jumping spider that feeds primarily on the buds of Acacia plants in Mexico and Central America
Extra eye on insects, detects light and dark
layers of tissues in abdomen – absorb oxygen directly into blood from air
a chemical substance produced and released into the environment by an animal affecting the behavior or physiology of others of its species
3 stages of metamorphosis with egg, juvenile and adult
Type of spider that releases cytotoxins
Down
4 stages of metamorphosis with egg, larva, pupa and adult
Spiderettes releasing a strand of silk while perched high up to be carried away by the wind
Spider silk is made of this macromolecule
Venom that attacks nervous system – paralyzes small prey
smaller male initiates mating by signaling his intentions to the female, often needed to allow mating to occur safely
Characteristic of resembling another animal or object in the environment
All ticks are these, vectors for many diseases, that live on the outside of host
control the type and shape of silk produced by silk galnds
Second pair of appendages on chelicerata, used for mating in spiders
Also known as the Brazilian wandering spider, is the most venomous spider
3 stages of metamorphosis with egg, nymph and adult
kill skin tissue, muscle tissue and blood vessels – can result in open wounds, scarring, hemolytic
organ of balance, in crustacea hollow sphere located at base of antennules