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 Post subject: Arthropod Quiz (QM)
Unread postPosted: Thu Aug 26, 2010 2:05 pm 
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Ok all, lets see who of you can get these arthropod questions.

First we will start with the basics, easy.
Question 1: What does the word Arthropod mean?
:whistle:


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 Post subject: Re: Arthropod Quiz!
Unread postPosted: Thu Aug 26, 2010 2:09 pm 
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Yay!! Great idea Scita!! (And a very warm welcome!!)

Arthropod means "jointed-feet". Arthropods are invertebrates with an exoskeleton, segmented bodies and jointed appendages. This group includes insects, arachnids, myripods and crustacean.

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 Post subject: Re: Arthropod Quiz!
Unread postPosted: Thu Aug 26, 2010 2:11 pm 
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A member of the phylum Arthropoda (which means "jointed feet"). Arthropods are invertebrates with an exoskeleton, segmented bodies and jointed appendages. The arthropod classification includes insects, arachnids (spiders, scorpions, mites, ticks), myripods (centipedes and millipedes), and crustacean (crabs, lobsters, crayfish, shrimp).

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 Post subject: Re: Arthropod Quiz!
Unread postPosted: Fri Aug 27, 2010 6:44 pm 
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Well done!! This is def my favourite subject of all! Here are the next set of questions:

1. Name the 5 Spiders that are dangerous to humans in Southern Africa plus ther venom types.
2. What are the two substances a fire fly or glow worm uses to create its light?
3. What gives the African Monarch ist poisonous advantage and in what life stage is it obtained?
4. Name at least 3 differences between Spiders and Insects.

Looking forward to your answers!!
:popcorn:


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 Post subject: Re: Arthropod Quiz!
Unread postPosted: Fri Aug 27, 2010 7:07 pm 
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1. .Latrodectus sp. Black Button Spider – Neurotoxic Venom
Brown Button Spiders -Neurotoxic Venom
Loxosceles sp. Violin Spiders -Cytotoxic Venom
Cheiracanthium sp. Sac Spiders-Cytotoxic Venom
Sicarius sp. Six-Eyed Sand Spiders -Cytotoxic Venom

2. luciferase and ATP combine with a protein waste product that the worm naturally excretes known as luciferin.
These three chemicals combine in the worm, but require a catalyst to produce light. This catalyst is provided by oxygen from the air the worm breathes. This oxygen oxidizes the chemical combination, and produces the bioluminescence.

3 African Monarch caterpillars feed on milkweed, and their bodies absorb its poisons.

4. Spiders have 8 legs whilst insects have just 6. Insects have 3 distinct body parts, a head, thorax and abdomen whilst spiders have just 2, a combined head and thorax known as the cephalothorax and an abdomen.
Spiders have simple eyes whilst insects have compound eyes. Spiders have piercing jaws whilst insects have jaws which are more suitable for chewing. All spiders can make silk thread (although not all spiders spin webs) whilst most insects cannot. Spiders can’t fly where as many insects have wings allowing them to do so.

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 Post subject: Re: Arthropod Quiz!
Unread postPosted: Fri Aug 27, 2010 7:35 pm 
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Very good moggiedog. :thumbs_up:

Spiders also have no antennae while insects do. This gets me very excited!! :D Siders are also exclusively carnivorous while insects as a group are both carnivorous and herbivorous, so the group is omnivorous.

Here is your next question, try this one:

Which Hawk Moth is able to squeek through it Proboscis, how does it do this and for what purpose.


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 Post subject: Re: Arthropod Quiz!
Unread postPosted: Fri Aug 27, 2010 7:42 pm 
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Scita - you have hit on one of my favourite things - creepy crawlies - especially spiders.

Your questions are great and has me dragging out my books and googling away.
:)

Now back to the books...............

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 Post subject: Re: Arthropod Quiz!
Unread postPosted: Fri Aug 27, 2010 8:43 pm 
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Death's Head Hawk Moth.

When attacked or irritated, they force air out of their proboscis, making a squeaking noise.

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 Post subject: Re: Arthropod Quiz!
Unread postPosted: Sat Aug 28, 2010 8:02 am 
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Hi Elzet

Well done on the Species. It is the Death's head hawk moth! :clap:
But they do not only do it when stressed. There is another reason for doing it.

And the last part of my question still remains, how do they do this!

Looking forward to your answers!


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 Post subject: Re: Arthropod Quiz!
Unread postPosted: Sat Aug 28, 2010 8:53 am 
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The moth is able to feed on honey without being attacked by bees. It is thought that the moth produces sounds similar to those made by the queen bee, which appeases the bees, allowing the moth to steel the honey unharmed.

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 Post subject: Re: Arthropod Quiz!
Unread postPosted: Sat Aug 28, 2010 4:49 pm 
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Where's my manners? A warm welcome to the Forum, Scita. :dance: :dance:


I thought I'll KISS (Keep it short and simple, and so unlike me :twisted: :lol: ), resulting in half the answer. :|

Piping sounds are produced by the Adult Death's Head Hawk moth by expelling air through its proboscis.

As H-f has mentioned, the moth mimics the sound of the queen honeybee to gain access to the hive and 'paralyse' the bees inside. It punches holes in the cells’ wax covering to feed on the honey. The caterpillars are known to make a loud snapping noise with their mandibles.

Elzet wrote:
When attacked or irritated, they force air out of their proboscis, making a squeaking noise.


The proboscis of the death's-head hawk moth is used as a kind of reed instrument,
blown through to make high- pitched, reedy notes.


Could it be that they use the special device in the head, called the cibarial pump, that has a flexible roof that is alternately raised and lowered to draw nectar up and then eject the nectar into the esophagus to force the air out of their proboscis?

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 Post subject: Re: Arthropod Quiz!
Unread postPosted: Mon Aug 30, 2010 8:58 am 
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WHOOP WHOOP.
Very good.
I think it is the most amazing thing, all the defferent ways in which animals have adapted to survive in their own special niche.

Here are your next questions:

1) Name the life cycle of the ant lion
2) How does an Ant Lion excrete body waste?
3) How can the Ant Lion's pit be used in tracking?
3) What is another name for an Ant Lion?


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 Post subject: Re: Arthropod Quiz (QM)
Unread postPosted: Sat Sep 04, 2010 8:27 am 
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1. Image

2. It depends what stage of the antlion you are referring to... Antlion larvae are unusual among the insects as they lack an anus. All the metabolic waste that is generated during the larval stage is stored and is eventually emitted as meconium near the end of its pupal stage.

3. See below.

4. Antlions are a group of insects in the family Myrmeleontidae. The most well-known genus is Myrmeleo. Also called lacewings. Or 'Doodlebugs'.

Source: Wiki

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 Post subject: Re: Arthropod Quiz (QM)
Unread postPosted: Sat Sep 04, 2010 8:37 am 
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3. Terrestrial and aquatic arthropods sense fluid flow in many behavioral and ecological contexts, using dedicated, highly sensitive mechanosensory hairs, which are often abundant.

First of all I'm no tracker, and learning this as I go along as well. So, if I make a mistake or miss something those with better knowledge must please pipe up.

Let's look at what we know:

- antlion moves basically at dawn and dusk, but I have it that they move around till dawn, so will answer from that perspective
- antlion may stay put for a couple of days
- one can reasonable see if an antlion hole is fresh (maintained) or old (not maintained)
- we will not see only a track and antlion spoor, but also other spoor around which will help date the tracks

So, you see a set of lion tracks and wonder whether they are worth following. You see the antlion tracks around it. How can they assist you in telling whether this lion's tracks are old or new?

Looking at the antlion tracks first, one can get an idea of whether it is last night's tracks or not, based on the above. That is where to start.

You're reasonably happy that the antlion tracks are last night's. If they're over the lion's spoor it means that the lion passed there yesterday or before - definitely not later than dawn. (We're not thinking/looking at the lion's habits, which may yet indicate that he may be close by - we're concentrating on the information on the ground.)

If the lion spoor is over the antlion tracks then it is yesterday's spoor and you can basically ignore it, it is not worth following up.

The antlion hole can tell you even more but that's a bit more difficult and tricky. If you see the antlion's spoor and hole in the lion's tracks then you know it is old. But if you see only the hole it may mean that the lion stepped on it and the antlion had to repair his hole afterwards - you'll not see his tracks leading to his hole.

If the antlion is busy repairing his hole, the lion may be very close by, and you need to be very careful!


From our Bishop3006 - http://www.parks-sa.co.za/forums/viewto ... &start=150

:clap: :clap:

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 Post subject: Re: Arthropod Quiz (QM)
Unread postPosted: Wed Sep 08, 2010 9:37 pm 
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:whistle: :whistle:

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