Connected on 2008-04-24 12:00:00
from Tucson, AZ, US
- 11:53 am
- Guesthi
- Bugscope Teamwelcome back
- Guesti had a problem with my computer
- Bugscope Teamthe class should be connecting soon
- Guestk
- Bugscope TeamWelcome to Bugscope!
- Bugscope Teamhello cavett elementary! welcome to bugscope
- Bugscope Teamhello welcome to bugscope
- Bugscope TeamYou have control of the 'scope, and let us know if you need any help or have any questions.
- TeacherHello. My class will be getting to the computer in about 10 minutes. We didn't submit an insect. Is there a way that you can just show is through some
- Bugscope Teamabsolutely. we've already setup the session with several cool bugs for you
- Bugscope TeamYou can click through the presets, to the right, if you would like.
- Bugscope Teamthats ok if you didnt send us insects. when that happens, I put some of our own from stock on a stub for you
- Bugscope Teamwe've got: ant, true bug, beetle, moth, fruit fly and a pill bug
- Bugscope TeamEach preset will take a few seconds to load, since clicking actually drives the microscope to that place.
- Bugscope Teamand from any of those positions you can change mag, move, focus -- pretty much whatever you would like to do.
- 11:59 am
- Bugscope TeamAre you comfortable using the controls?
- Bugscope TeamJust try clicking on a preset to start out.
- Bugscope Teamnancy, can you see this chat? i'm worried you are at a low screen resolution (800x600) and can't see this chat
- Guestwhat is this bug/
Bugscope Teamthis is an ant
- Bugscope Teamthis is an ant
- Guestoh
- Guestok
- Bugscope Teamthis is an earwig, now, close up
- Bugscope TeamSheesh no I mean a pillbug.
- Bugscope Teamrolypoly is another name for pillbug
- Guestcool
- Bugscope Teamthey are a crustacean and so they are related to crabs and lobsters
- 12:04 pm
- Guestare millapeades and centapeads like that, too?
Bugscope Teamthose are a different classification
- Bugscope Teamnancy, we think you are having some connection problems, is everything okay?
- Teacheryes. My class is logged in now.
- Bugscope Teamok, great, can you see the controls on the right side of your browser?
- Guestoh ok
- TeacherWhat part are we looking at?
Bugscope Teamthis is the head of a rolypoly
- Bugscope Teamthis is the underside of the head of a rolypoly
- Bugscope Teama rolypoly is also known as a pill bug
- Bugscope Teamor a sowbug, or a woodlouse
- Bugscope Teamnancy, your login (teacher2) has control of the scope, you can move the image anywhere you like
- TeacherI'd rather you guys just show the class around
- Bugscope TeamOkay.
- Bugscope Teamokay, no problem, scott you want to drive?
- Bugscope Teamscott will drive while we tell you cool things about the images, sound good?
- Bugscope TeamYeah unless Cataku wants to drive.
- Bugscope Teamall these images are shades of black and white, that is because the image is from an electron microscope
- Bugscope Teamno you are best at driving the scope scott, its all you
- Bugscope Teamelectron microscopes use electrons to gather the image
- Teacherwhat animal is this?
Bugscope Teamthis is a rolypoly which is a crustacean. they are related to lobsters and crabs
- Bugscope Teamthis is a pill bug
- 12:09 pm
- Guestwhat part of the rolypoly is this?
Bugscope Teamthis is a claw
- Bugscope Teampill bugs are called isopods because all of their feet (the -pod) are the same (iso-).
- TeacherWhat are the spikes on their arm?
- Bugscope Teamthose spikes are called setae (see-tee)
- Bugscope Teamwell, the small spikes are setae
- Bugscope Teamyes they are setae (pronounced see-tee)
- Bugscope Teamand the very small ones are microsetae
- Bugscope Teamsure thing!
- Bugscope Teamokay
- Bugscope Teamscott, drive us to the head good buddie
- Bugscope Teamscott, if you want me to drive, so you can type, that's cool by me?
- Bugscope Teamrolypolys have 4 sets of jaws
- Teacherhow big does the pill bug grow?
Bugscope Teamsome pillbugs that live in the sea can get pretty big- to around 20cm
- Bugscope Teamthere is part of the eye
- Bugscope Teamthis is the only view we have of the eye
- Guesthow many legs do rolypolys have?
Bugscope Teami believe they have 7 pairs of legs, so 14
- Guestwow i didnt know that
- 12:14 pm
- Bugscope Teampillbugs are not insects; they are crustaceans, as Cate had said earlier
- Bugscope Teamsee the antennae?
- Teacherdo you have any insects?
Bugscope Teamyes we have some true bugs, an ant, a moth, and a beetle
- Bugscope Teamnow we are looking at an insect
- Bugscope Teamthis is a moth
- Bugscope Teamcan you see it now?
- Bugscope TeamHello all
- Bugscope Teamyou can see the eyes, and the proboscis...
- Bugscope Teamyay Annie!
- Bugscope Teamthe proboscis is curled up
- Teacherdo they have compound eyes?
Bugscope Teamyes, they have 2 compound eyes that are spherical, and have the hexagon pattern on the
- Bugscope Teamit acts like a straw for the moth
- Teacheris this the mouth?
- Bugscope Teamthe eyes are the big round things (yes, compound eyes) with individual facets. each one of those facets, called ommatidiae, has a lens in it
- Teacherhow long do they grow
Bugscope TeamSome moths have probosci that are several times longer than their bodies. when fully unrolled
- Bugscope Teamand you can see one of the compound eyes to the right -- the dome like thing
- Guestis a moth basicly a butterfly only its ussualy out at night?
Bugscope TeamButterflies have clubbed antennae and generally fly during the day. Moths have non-clubbed antennae and are (generally) active at night.
- Bugscope Teamthese are small moths, I think
- Bugscope Teamlittle more than a centimeter long
- Bugscope Teamnow you can see better where we were
- Bugscope Teamyou can see some of the scales now
- Guestok
- Teacherhow long do they live?
Bugscope TeamMost insects live one full year, from the time the egg is layed to the time that the adult dies. The amount of time the insect spends in each life stage varies between species.
- 12:19 pm
- Teacherwhat is this?
- Guesti have to go but ill be back on later k?
- Bugscope Teamnow you can see some of the scales, and the holes where there used to be scales
- Bugscope Teamok see you later chickscoperocks
- Bugscope Teamsure chick!
- TeacherWhat are the scales for?
- TeacherHow do they breathe?
Bugscope TeamInsects breathe through spiracles, which are holes in their bodies. They typically have spiracles on each segment of the abdomen, and other places. These openings are like nostrils, they connect with trachea that make up the insects resipratory system
- TeacherDo they have a nose?
Bugscope TeamThe spiracles are like nostrils to breathe, and the antennae help the moth to smell
- TeacherDo they have a mouth?
Bugscope Teammoths have a proboscis that acts like a straw
- TeacherDo insects have blood?
- Bugscope Teaminsects have a substance called hemolymph that is sort of like blood
- 12:25 pm
- Bugscope Teamthey don't have a closed circulatory system, though -- the hemolymph bathes the inner organs rather than moving through arteries and veins
- Teacheris the hemlymph, similair to the lymph found in humans?
Bugscope TeamNot really. Insect hemolymph does not carry oxygen like human blood does. Hemolymph serves primarily to transport hormones and other compounds around the body. And yes, it is the most important part of the insect immune system
- Bugscope Teamin a way it is similar; for example it is usually clear
- TeacherDo they have an immune system via the lymph
- Bugscope Teamthe scales act the same as the feathers on a bird
- Bugscope Teamum we will have to ask Annie about the immune system
Bugscope TeamInsects have an immune system that is able to recognize "self" from "non-self." Different type of hemolymph cells recognize pathogens or foreign objects and work to either digest or encapsulate the invader to prevent it from causing harm to the insect. What insects don't have is an immune system with memory...they do not develop antibodies or immunity to infections like humans do
- TeacherWhat about others systems? Do they have digestive, lymph?
Bugscope TeamThey have a digestive system that is similar to that of humans. They really don't have digestive juices the same way that we do. Insects that eat solid food have something like teeth at the end of their esophagus that physically grinds up solids. Some insects have symbiotic fungi and bacteria that can help them break down other more complex food items. The absorption of food is by ciliate cells that line the gut.
- TeacherThats a nice shot. What r we looking @
- Bugscope Teamlittle scar marks on the ant jaws
- Bugscope Teamyou can see that they have lots and lots of setae
- Bugscope Teamwhich are often sensory
- 12:30 pm
- Teacherhow does the digestive tract work?
- TeacherWOW!
- Bugscope TeamMy answers are slow in coming, I am trying to be as complete as possible
- TeacherThank you we appreciate it.
- Bugscope Teamit's alive!
- Bugscope Teamheh
- Bugscope Teamthe electrons are making the setae move
- 12:35 pm
- Bugscope Teamnancy, notice the scalebar in the lower right of the image, that tells you size. 1 um = one micron, that is one-millionth of a meter
- TeacherDo they have neurotransmitters, and electrical pre and post synamptic ganglion like humans?
Bugscope TeamYes...very similar. They use acteylcholine and GABA just like us. There are some differences in the number and types of neurons, for example insects don't have a lot of interneurons, and most insect muscle is striated, but overall the insect nervous system is very similar to that of humans. That is what makes insects such great models for studying how brains work in all animals.
- Bugscope TeamI think we are following fungal hyphae
- TeacherWow that is really intresting.
- 12:40 pm
- Bugscope TeamHello!
- TeacherIs this a different insect.
- Bugscope Teamthis is a true bug
- Bugscope Teamthe head of a hemipteran
- Bugscope Teamwith piercing mouthparts
- Bugscope Teamwow, nice focus field there...
- Bugscope Teamnice scott!
- Bugscope Teamthis is the tip of the proboscis
- Bugscope Teamit has tiny setae on it that likely help it taste what it will be sampling with its long mouthparts
- TeacherDo they have hearts, Na, K pumps? Something that moves the hemolymph through the body? Does the straited muscle move the fluid like the skeletal muscle in humans?
Bugscope TeamThey have a dorsal heart and a ventral nerve chord. They have an open circulatory systems and I don't think that it is controlled by muscles in insects (although I could be mistaken on that---or there could be exceptions). Some insects have auxilliary pumps that help to push hemolymph into tight spots, like antennae and wings. They have sodium and potassium pumps. Insecticides such as DDT target the Na/K pumps.
- Bugscope Teamanother example of the proboscis is the elephant trunk. that is the largest proboscis in the animal world.
- 12:45 pm
- Bugscope Teamthis is where a pin went through
- Bugscope Teamtenent setae
- 12:50 pm
- TeacherWe're going to have to get going. Thanks a lot for all the information you provided. Our class really appreciates it
- Bugscope Teamthat looks cool
- Bugscope TeamThank You!
- Bugscope Teamthanks for all the great questions
- Bugscope TeamI'm glad we had annie here to help us :)
- Teacherthank you for all your answer and help today, very intresting.
- Bugscope TeamThank you!
- Bugscope TeamAnnie-Chan I think we are done.
- Bugscope TeamThank you for connecting today. We would've been lost.
- 12:55 pm
- Bugscope Teamtomrrow?
- Bugscope Teamtomorrow 9AM
- Bugscope Teamyeah if you can make it
- Bugscope Teamnot at 12..well that is good
- Bugscope Teamit is pajama time for you
- Bugscope Team I will try to get my butt out of bed at 7 am
- Bugscope Teamoh yeah Annie you can sleep in tomorrow
- Bugscope Teamactually we do have a nice rock to look at with lots of fossils
- Bugscope TeamI bet they don't askes advanced insect physiology questions!
- Bugscope TeamI need to read my book.
- Bugscope TeamWell, I will try nonetheless...
- Bugscope TeamMy giant bug book.
- Bugscope TeamThat would be cool.
- Bugscope TeamI want to use the microCT to look into amber
- Bugscope Teamokay, shall we close up the session?
- Bugscope TeamI don't think that book would have helped you. You would need Reg. Chapman's Insect Physiology book
- Bugscope TeamOK people. See you tomrrow, bright and early ;)
- Bugscope Teambye bye
- Bugscope Teamsome people have been specializing in insects in amber
- Bugscope Teamlater Mademoiselle!
- Bugscope Teamover and out -- back to the protein
- Bugscope Teamfrom the pre teen to the pro tein
- Bugscope Teamrxl stopped, session locked and disabled
- Bugscope Teamgood session everyone! bye bye
