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BSPM102
bugs class
216
Science
Undergraduate 1
09/16/2009

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Term
smallest insect
Definition
fairy fly
Term
largest beetle
Definition
cerambycid beetle
Term
biggest bug
Definition
pregnant giant weta cricket
Term
prehistoric insects (2)
Definition
21 inch wingspan - dragonflies ; 11 inches- nymph of walkingstick
Term
current longest body
Definition
35.7 cm (56.7 cm with legs)
Term
current longest wingspan
Definition
11 inches white witch moth
Term
4 problems with larger animals?
Definition
1. extensive support structure 2. large amount of energy to move inertia 3. energy to sustain movement 4. large amount of land
Term
name of biggest wingspan of moth?
Definition
white which
Term
3 advantages of being small?
Definition
1. insect muscles appear stronger due to small mass (kinetic energy) 2. small gravitational forces act on their small mass 3. drop insect off building they dont get hurt
Term
3 problems with being small?
Definition
1. issues of air resistance 2. water loss 3. SOLUTION TO WATER LOSS: exoskeleton prevents water loss.
Term
Benefits of arthropod exoskeleton (4)
Definition
1. protection from harmful agents 2. rigid framework for muscles attached to exoskeleton 3. allows jointed appendages 4. development and arthropod trachial system
Term
disadvantages of exoskeleton?
Definition
periodic need to shed old exoskeleton (molting)
Term
define apodemes and sutures
Definition
both of these structures are located on the inside of the exoskeleton that provide support for internal structures
Term
define chitin and its purpose
Definition
main protein that makes up insect exoskeleton
Term
define exocuticle
Definition
upperlayer of exoskeleton is further hardened by cross linksages
Term
purpose of mushroom bodies?
Definition
only place where "learning" takes place in insects or "the seat of learning"
Term
define hemolymph
Definition
insect blood
Term
what is the epicuticle
Definition
outer most layer of exoskeleton
Term
define sclerotin or sclerotizing
Definition
an insoluble tanned protein (outer shell) that permeates and stiffens the chitin
Term
definte chitin
Definition
forms part of the hard outer integument of insects, crustaceans, arachnids
Term
define resilin
Definition
an elastic substance consisting of cross-linked protein chains found in the cuticles of insects
Term
define arthropodin
Definition
a water soluble substance that forms part of the endocuticle of insects
Term
primary chemical compound of insects is
Definition
chitin
Term
what is the hardening process called?
Definition
tanning or sclerotization
Term
sclerotization associates with what 2 things?
Definition
1. irreversably hardens exoskeleton 2. usually associated with darknening
Term
5 layers of exoskeleton IN ORDER from OUTSIDE to INSIDE
Definition
epicuticle, exocuticle, endocuticle, epidermis, basement membrane
Term
structure and function of epicuticle
Definition
structure: wax layer - function: waterproofing DOESNT HARDEN
Term
structure and function of exocuticle
Definition
structure: PRIMARY HARDEN area - function: supports chitin (some waterproofing)
Term
structure and function of endocuticle
Definition
DOESNT HARDEN (not sclerotized)
Term
function of epidermis?
Definition
living area of cells - creates other cells
Term
function of basement membrane
Definition
supports and surrounds all tissues - it regulates what flows into and out of the living cell layer
Term
2 cuticular extensions
Definition
1. spines (several functions, but non-sensory) 2. setae (have special associated epidermal cells (scales and sensory functions))
Term
define instar
Definition
stage between molts (may be multiple)
Term
3 body regions (tagmata) of insects
Definition
1. head (antennae, compound eye, mouthparts, preceiving light smell sensory) 2. thorax (3 segments) where they move 3. abdomen
Term
how is the insect nervous system different from mammals?
Definition
ours is centralized in the brain - theirs is not and they have 3 fused ganglion (3 connected mini-braings) and other ganglion down the body to help other body segments move
Term
why can you cut off a roach head and it still move and live?
Definition
because its brain system isnt centralized like a mammals... it goes through out its body unlike ours
Term
what is the juvenile hormone? and where is it produced?
Definition
in the corpora allata
Term
what will determine what stage the insect will produce and how?
Definition
the more juvenile hormone that is produce will determine what stage the insect molts into
Term
what is the purpose of the dorsal vessel?
Definition
it is associated with the insect heart. It helps pump hemolymph from the rear of the insect forward (as a heart circulates our blood thru our veins)
Term
what structure produces ecdysone?
Definition
the prothoracic gland
Term
what are the ganglion organized down?
Definition
the ventral nerve chord 0---0---0----00---0 each brain does a few different things as where our brain does all the functions
Term
what do accessory glands do for female arthropods? 2 things
Definition
1. they either produce a protective coating for arthropod eggs or 2. produce nutrients for the eggs
Term
what do accessory glands in male arthropods do? how is it transferred?
Definition
they produce a nutrient packet that is then transferred through the SPERMATOPHORE to the female to nourish the eggs
Term
define macrodecomposer? give example
Definition
isopods or millipedes break up large leaf material into smaller pieces that are more readily decomposed in the environment
Term
6 uses of silk by spiders
Definition
1. balooning 2. protection of eggs 3.prey capture/binding 4. dragline 5. protection/retreat 6. web structures for mating
Term
what does the ecdysone do? Juvenile Hormone?
Definition
tells the insect when it is time to molt from on stage to the next. JUVENILE HORMONE tells it WHICH stage to molt to!
Term
3 ventilatory mods?
Definition
Gills, Plastron, Gaseous Exchange occurs directly through integument
Term
what is the term for exocuticle, endocutile, epicuticle together?
Definition
procuticle
Term
what is the procuticle?
Definition
endocuticle, exocuticle, epicuticle... ALL LAYERS EXCEPT living cell layer
Term
what are malpighian tubes? what are they similiar to in the human structure?
Definition
malpighian tubules float thru the hemolymph (insect blood). They function like the human kidney. They work for amino acid, salt, and water balance. (pg 24)
Term
what is the excretory system? how is it similar/different to humans?
Definition
they are they same. they remove waste
Term
which 2 layers in molting are shed? what happens to the last layer?
Definition
epicuticle and exicuticle are shed. ENDOCUTICLE is digested
Term
what 4 things can compount eyes do?
Definition
see light/dark, shapes, movement, definition of the environment
Term
what do simple eyes lack?
Definition
ommatidium (radial element that composes a compound eye) and it can barely see movement and light/dark
Term
what do hygroreceptors sense?
Definition
h2o
Term
what does open circulatory system mean?
Definition
no veins, arteries etc.. human circulatory systems are CLOSED unlike bugs!
Term
where are the organs contained in the open circulatory system? what happens to these organs?
Definition
within the paratrophic membrane.. they are just bathed within the nutrient rich blood
Term
2 differences between hemolymph (insect blood) and human blood
Definition
it doesnt contain hemoglobin and almost never contains oxygen like human blood does
Term
ametabolous insects means?
Definition
no metamorphosis (feed, molt, get bigger)
Term
hemimetabolous insects means?
Definition
simple metamorphosis
Term
simple metamorphosis stages (4). whats special about this type of devlopment?
Definition
egg, 1st-4th instar, nymph, adult. Only adult stage has wings!
Term
holometabolous insects mean?
Definition
complete metamorphosis
Term
how many insects out of 50 have complete metamorphosis?
Definition
only 9 out of 50
Term
5 stages of complete metamorphosis? example
Definition
egg, 1st-3rd instar, larva, pupa (cacoon), adult - moths, wasps, butterflies, bees
Term
whats good about cold blooded insects in devlopment?
Definition
nicer/more regulated climate = faster development
Term
define 'degree days'
Definition
prediction of insect development from prevailing temperatures
Term
define diapause (development)? whats it do?
Definition
it allows survival in dry and winter seasons. This is genetically determined. Only ends when favorable condiions change a shit load. (to extreme for the insects genetically determined base temp) LONG TERM!
Term
define quiescence (development)? whats it for? How does it end?
Definition
slows the devlopment of insects due to unfavorable weather conditions (temp, humidity, etc). It ends with the resumption of favorable conditions (stops when rain stops or cold day gets warmer) (back to normal). SHORT TERM!
Term
BUG MYTHS! (pg 23)
Definition
1. daddy long legs is not most poisonous spider
2.stories that appear mysteriously are
usually false
3. black widows and outhouses (usually affected men)
4. no insects can bore into bone
5.
Term
why bugs as sources of urban legends? (pg 23)
Definition
to scare us for no reason - media (fear factor)
Term
what bug are chainsaw blades based off of? (pg 23)
Definition
straight jaws of long horned beetle larvae
Term
most dangerous spider in USA? (pg 23)
Definition
brown recluse spider
Term
when did john hanning speke live? Why is he famous? (pg 23)
Definition
born 1827
died 1864
-spear thru cheek hence the big beard
-found source of Nile river
-used knife to get bug out of ear
-got infected ear
-died of self-inflicted gunshot wound
Term
define tagmosis and tagmata
Definition
that act of grouping insect body segments into regions. Each region is called a TAGMATA (head, thorax, abdomen)
Term
What is diffusion (passive)?
Definition
diffusion refers to the passive respiration in which oxygen moves from an area of greater concetration
(outside) into an area of lesser concentration (inside the insect)
Term
how does air enter the insects body?
Definition
thru spiracles (openings in the skin) that can be opened or shut
Term
why would insects shut their spiracles?
Definition
loss of water vapor
Term
define arthropod. What are they? 5 things
Definition
Invertebrate with exoskeleton and jointed appendages (legs, arms). Insects, arachnids, crustaceans, milipedes, centipedes
Term
What is the fat body and how does it resemble the human system? What does it do (3 things)?
Definition
Very similar to human liver. Primary organ for intermediary metabolism. It produces enzymes, stores compounds for different functions, and helps with detoxification
Term
How is oxygen used in arthropods if their blood doesnt carry oxygen?
Definition
they need it to survive like humans do. They move it differently than we do by the ventilatory system alone. The tracheols are plugged into individual cells and are moved in that way.
Term
how does arthropod blood mainly function? 2 things
Definition
hormone movement and nutrient movement
Term
IN MOST ARTHROPODS IS THERE OXYGEN MOVEMENT?
Definition
no!
Term
How many stages do pillbugs/sowbugs molt and how?
Definition
2 Stages. Front half first then a few days later the back half
Term
whats unique about pillbugs/sowbugs mating?
Definition
female has a marsupium (like a kangaroo). She has eggs in there and they hatch in there too.
Term
Pillbugs AKA?
Definition
roly poly
Term
what is an exuvia? (molting)
Definition
cast skin
Term
molting is not for...?
Definition
wimps!
Term
What are 2 ways arachnids breathe?
Definition
book lungs and spiracles
Term
What are book lungs?
Definition
basically infoldings on the under side of the abdomen. They provide a large surface area for oxygen diffusion.
Term
What are mandibles? What do they do?
Definition
2nd layer mouthparts. Food crushing and manipulation
Term
What is associated with the antennae within the nervous system? pg 31
Definition
The deutocerebrum is associated with the INPUT from the antennae
Term
How do insects primary sense the world?
Definition
antennae! All thru neural impulse receptors of difrrent types
Term
Members of the Phylum Arthropoda (insects, crustaceans, millipedes, centipedes, spiders) have 4 things! what are they? QUIZ
Definition
1. Segmented bodies
2. jointed appendages
3. a hard skeleton on the outside of the body
4. the need to periodically shed the external skeleton in order to grow
Term
What are the 3 segments of the insect leg? QUIZ
Definition
Coxa, trochanter, tarsus
Term
Malpighian Tubules are: ? QUIZ
Definition
part of the insect excretory system and function much like the human kidney
Term
Some male arthropods produce a specialized protein package which is passed with the sperm during the mating process. The protein package is commonly referred to as:? QUIZ
Definition
spermatophore
Term
Insects that go thru a simple metamorphosis are:? QUIZ
Definition
similiar in general appearance and habits through out life but have to go thru a final molt to become sexually mature adults
Term
What term describes arthropods that produce one generation per year? 2 per year? 3 or more per year?
Definition
univoltine; bivoltine; multivoltine
Term
What 2 things do millipedes use a defense tactic? QUIZ
Definition
1. produce/excrete distasteful or irritating chemicals from between their segments and
2. produce knock out gasses which can put a small predator to sleep for days
Term
How are arachnids different from insects? QUIZ
Definition
four pairs of legs
Term
What are pedipalps on a male spider used for? QUIZ
Definition
transferring sperm during mating
Term
Spiderlings travel long distances by letting out one strand of silk and letting the wind carry them. Whats this called? QUIZ
Definition
balooning
Term
What tagmata can you find legs and wings on?
Definition
thorax - never any other segment
Term
Biggest disadvantage of exoskeleton?
Definition
The need to molt!
Term
Do centipedes have good mothers?
Definition
Mother centipedes tend eggs and first born young. They are the model of family values of the arthropod world.
Term
What class do Millipedes belong to?
Definition
Diplopoda
Term
What is an ovipositor? pg 21
Definition
females have an external ovipositor (egg laying structure)
Term
what is an aedeagus? pg 21
Definition
males have an external aedeagus (penis)
Term
define tritocerebrum
Definition
mostly associated with mouthparts and food intake
Term
define deutocerebrum
Definition
mainly associated with the input from the antennae
Term
define pritocerebrum
Definition
receives visual input. Also involved with sensory input (learning-mushroom bodies here)
Term
what are maxillipeds? What do they contain? WILL BE ON TEST!!!
Definition
They are the modified front pair of legs of centipedes. They contain cytolysin (poison used to subdue prey)
Term
Why are air sacs in the trachea?
Definition
They help in the movement of oxygen. The constrict similarly to lungs (bellows) and puff the air in
Term
What is the cribellum? (spiders)
Definition
Rectum of silk for spiders. Where the silk comes out of the spider
Term
Basic steps of the Spider Web by Orb Weaver (video)! 5 steps. ON TEST!!
Definition
1. Bridge Line
2. V-Line
3. Radii (reinforces web)
4. dry scaffolding spiral
5. Sticky coils (for prey)
Term
Do isopods (sowbugs/pillbugs) have defense compounts like centipedes and their gases?
Definition
no they dont have any defense compounds and just roll into balls
Term
What is the tarantism?
Definition
People were reportadly bit by a wolf spider and then went into fits of uncontrollable dancing
Term
Possible causes of tarantism? 4 things
Definition
1. european black widow but theres no evidence to prove this theory.
2.neurotic coping response to the effects of Black Death
3. Subverted way to worship Bacchus (god of wine and good times)
4. profitable entertainment
Term
What is the cuticle? Procuticle?
Definition
Entire insect Exoskeleton. Procuticle = just the 3 cuticles
Term
what are leg mods for? 5 things pg 19
Definition
jumping, grasping, running, digging, swimming
Term
what are mouthpart mods for?
Definition
chewing, lapping, sucking/piercing
Term
5 Structures of the HEAD? organs for ingestion pg. 16
Definition
1. Labrum ("upper lip")
2. mandibles
3. maxillae (maxilla, singular)
4. labium ("lower lip")
5. hypopharynx ("tongue")
Term
what is the labrum? wheres it located?
Definition
litle flap (upper lip like) - head
Term
what are mandibles? wheres it located?
Definition
food aquisition (cut, chew, grasp, prey, capture) - head
Term
what are maxillae? where are they located?
Definition
detects taste & light - head
Term
what is the labium? wheres it located?
Definition
taste receptors, helps push food in - head
Term
what is the hypopharynx? wheres it located?
Definition
tongue - head
Term
what are some other characteristics of compound eyes? 3 things
Definition
perception may different from human vision - polarized light - ultraviolet have lengths
Term
key sensory organ? what if bug is without?
Definition
antennae (ability to detect odors) - cant function without antennae
Term
what are chemoreceptors? (2 things) where are they located? pg 17
Definition
1. taste/contact - chemicals in aqueous media
2. smell - airbornce chemicals

LOCATED in antennae
Term
what are mechanorecpetors? (3 things) where are they located? pg 17
Definition
1. tactile receptors
2. position receptors
3. sound reception/vibration

LOCATED IN ANTENNAE
Term
3 Structures of thorax (locomotion - wings, legs) pg 18
Definition
1. prothorax
2. mesothorax
3. metathorax
Term
what is the prothorax? wheres it located? pg 18
Definition
moves oxygen to wings - thorax
Term
what is the mesothorax? located? pg 18
Definition
always has wings on them - thorax
Term
what is metathorax? located? pg 18
Definition
2nd pair of wings (if any)
Term
where are spiracles often present on the thorax? pg 18
Definition
prothorax
Term
5 parts (segments) of legs? pg 19
Definition
coxa, trocanter, tarsus, femur, tibia
Term
What stage do wings occur? pg 20
Definition
adult stage
Term
4 wingless bugs? pg 20
Definition
1. wingless wasp
2. flea
3. louse
4. worker termite
Term
7 Ways wings MAY be modified? pg 20
Definition
1. wing veins reduced
2. wing veins increased
3. forewings thickened, leather (tegmina)
4. forewings hardened (eleytra)
5. forewings modified as hemelytra ("half wing" of true bugs)
6. hindwings reduced to knob (haltere)
7. hard wings (beetle) (eleytra)
Term
whats the 1st thorax for? 2nd? 3rd? (wings) pg 20
Definition
for air pumping muscle to wings - wings - wings
Term
if there are two pairs of wings, where are they located? pg 20
Definition
2nd (mesothorax) (at least) and 3rd (metathorax) thorax
Term
11 Structures of the abdomen? pg 21
Definition
first 7 are similiar (lack appendages) - segment 8 and 9 (external genitalia) - 10 (is highly reduced) - 11 (cerci)
Term
define cerci. pg 21
Definition
captures prey or food (pincher bug)
Term
what do segments 8 and 9 contain of the abdomen? names for them? pg 21
Definition
external genitalia - male: aedeagus (claspers - grabs female) - female: ovipositor (lays eggs)
Term
3 basic regions of digestive system? pg 22
Definition
foregut, midgut, hindgut
Term
what system is the foregut part of? functions? pg 22
Definition
digestive system ; intake for food - preliminary processing of food or storage for young
Term
whats the midgut part of? functions? pg 22
Definition
digestive system ; digest food
Term
whats the hindgut part of? functions? pg 23
Definition
digestive system ; no further digestion - provides nutrients it doesnt get from food
Term
what does molting do to the hindgut? pg 23
Definition
it causes it to fall off and get a new one
Term
Structure of forgut? 5 parts - pg 22
Definition
1. pharynx (connects nose and mouth to nasal passages IN HUMANS)
2. salivary glands
3. esophagus or crop (food storage)
4. proventriculus (grinding/mix food with saliva
5. cardiac valve (before stomach)
Term
structure of mid gut? 3 parts - pg 22
Definition
1. ventriculus
2. gastric caeca/caecae - packets that absorb nutrients
3. peritrophic membrane - protects cells
Term
structure of hindgut? 2 parts - pg 23
Definition
1. pylonic valve (lets food pass to hindgut)
2. malpighian tubules (kidney - spaghetti like)
Term
what system are the malpighian tubules part of? pg 23
Definition
excretory system
Term
what system are the rectum and anus part of? pg 23
Definition
excretory system
Term
what does hemolymph do and store? located? pg 25
Definition
transports nutrients, waste and hormones - stores h2o and ions -
Term
what system are hemocytes part of? funtion? pg 25
Definition
circulatory system ; blood cells, mostly water, inorganic ions (salt-waste items)
Term
functions of hemoglobin? system? pg 25
Definition
circulatory system (very rare in insects!)
Term
Structure of Circulatory System? 2 things (what do they do)- pg 25
Definition
Dorsal Vessal (heart - long tube along back) and hemolymph
Term
2 structures of ventilatory system? pg 26
Definition
trachea and spiracle
Term
female reproductive system structure? 3 things pg 29
Definition
spermatheca; oocytes; accessory glands
Term
what are spermatheca? what system? pg 29
Definition
special organ for storage of sperm; female reproductive
Term
structure of male reproductive system? 2 things pg 30
Definition
accessory gland and spermataphore
Term
what system is the spermataphore from? function? pg 30
Definition
male reproductive system; transported to female to feed eggs
Term
structure of nervous system? 4 things pg 30
Definition
neurons, dendrites, axons, sunapses
Term
what are synapses? system? pg 30
Definition
where they "talk" to each other ; nervous system
Term
how many stages of univoltine? bivoltine? what are they? pg 37
Definition
3; 3; egg, nymph, adult
Term
can sowbugs roll into a ball? pg 38
Definition
no
Term
2 differences between sow bug and pill bug? pg 38
Definition
1. sow bugs have tail like appendages
2. pill bugs (roly poly) roll up
Term
What is pill bugs defense? pg 38
Definition
heavily armored
Term
How many plates on an isopod? what part? how many pairs of legs? pg 38
Definition
7 armored plates on the thorax; 7 pairs of legs
Term
How many segments does the isopod abdomen have? pg 38
Definition
6 segments
Term
what type of eyes do isopods have? what do they see? pg 38
Definition
simple ocelli (eyes) - basic movement and light
Term
define macrodecomposer? are isopods macrodecomposers? pg 38
Definition
shreds large material to break up for environment; yes
Term
how many pairs of antennaes do isopods have? pg 38
Definition
2 pairs (1 short, other prominent)
Term
How do isopods molt? How many stages? pg 39
Definition
front half molts first then a few days later the back half molts
Term
how many segments are in the head of a millipede? pg 40
Definition
5-6 segments in head
Term
What do most body segments on a millipede have? pg 40
Definition
two pairs of legs
Term
3 similiarities of millipedes to insects? pg 40
Definition
1. tracheal system
2. malpighian tubules
3. single pair of antennae!
Term
Do all centipedes exceed 100 legs? pg 41
Definition
no, only some soil centipedes
Term
difference between millipedes and centipedes? pg 41
Definition
millipedes have many PAIRS of legs - centipedes have 1 SINGLE pair of legs per body segment
Term
how many segments do centipedes typically have? pg 41
Definition
most have 15-23 segments
Term
how do centipedes kill or stunn their prey? how and why? pg 41
Definition
with a pair of maxillipeds - slit-like opening at tip and it contains cytolysin (poison)
Term
two body regions of arachnids? pg 42
Definition
cephalothorax and abdomen
Term
Eye type of arachnids? pg 42
Definition
simple ocelli (eyes)
Term
how do arachnids move oxygen and CO2? 2 ways! pg 42
Definition
thru tracheal system and/or book lungs!
Term
how do centipedes protect eggs? pg 41
Definition
stays with eggs till they hatch
Term
what can centipedes do with their mouths? pg 41
Definition
produce a painful bite
Term
how do males reproduce with female centipedes? pg 41
Definition
males will leave packets of sperm for femails. Some big ones do elaborate dances
Term
do arachnids have antennae? pg 42
Definition
no
Term
how many appendages do arachnids have? pg 42
Definition
6 appendages
Term
what are chelicerae of arachnids? pg 42
Definition
fangs
Term
what are pedipalp of arachnids? function? pg 42
Definition
GRABBY CLAWS; sensory, helps transfer sperm, grasp prey
Term
how many pairs of legs do arachnids have? pg 42
Definition
4
Term
4 physical features of spiders? pg 43
Definition
pedipalp (males is modified with tip enlarged), breath thru combo of book lungs and tracheae, eyes, spinnerets
Term
what do cribellate spidres have? pg 43
Definition
slits on spinnerets used to produce silk
Term
define cribellum? pg 43
Definition
oval plate-like structure in front of spinnerets
Term
what are special about True Spiders (labidognatha)? pg 43
Definition
jaws open sideways
Term
what are special about Tranatuals and funnelweb spiders (mygalomorphgs) pg. 43
Definition
jaws move primarily up and down (parallel to long axis of body)
Term
what do all spiders develop as? pg 44
Definition
predators of other arthropods
Term
3 cob web spinners? pg 44
Definition
1. cobweb spiders
2. orb spiders
3. cellar spiders
Term
3 passive hunter spiders? pg 44
Definition
1. funnel-web spiders
2. crab spiders
3. tarantula
Term
4 active hunter spiders? pg 44
Definition
1. jumping spiders
2. wolf spiders
3. wood louse(roly poly hunter)
4. long-legged sac spiders
Term
2 Evil symbols of spiders? pg 45
Definition
1. dispatch of their prey by poison
2. exaggeration of the deadly nature of spiders
Term
Good luck sources of spiders? pg 44
Definition
1. use of spiders in divination of events
2. "if you wish ti live and thrive let the spider run alive."
Term
3 different types of groups that fear spiders? pg 46
Definition
1. large spiders
2. black spiders
3. long-legged spiders
Term
Where did tarantism start? pg 46
Definition
centered originally around the city of taranto/southern italy
Term
What characteristic is special about cribellate silk? pg 47
Definition
produces very fine sticky silk
Term
4 properties of spider silk? pg 47
Definition
1. noted for strength and elasticity
2. breaking point second only to fused quartz fibers
3. threads may stretch full length before breaking
4. very durable (resistant to degradation by fungi, bacteria, organic solvents)
Term
how do wolf spiders take care of their young? pg 4
Definition
carries egg-sac on back until hatch then the kids get on the back for a while
Term
which spider has good vision? pg 44
Definition
jumping spider
Term
2 common in house spiders? pg 44
Definition
cobweb spiders and funnel weaver spiders
Term
whats significant about crab spiders? 2 things - pg 44
Definition
most common (at flowers) - large front legs not claws
Term
how do tarantuals attack? pg 44
Definition
establish burrow and attack close
Term
life expectancy of female tarantuals? male? pg 44
Definition
25 + years ; males live less than that
Term
what kind of spider was the miss muffet story about? pg 46
Definition
mediterranean black widow
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