Skip to Content

Insect Quiz (RV)

Enjoy, participate and learn from the quiz forum. Post your quiz here for others to enjoy as well

Moderator: RosemaryH

User avatar
oddesy
Virtual Ranger
Virtual Ranger
Posts: 3183
Joined: Wed Jan 02, 2008 4:57 pm
Location: Randburg, SA

Re: Insect Quiz (RV)

Unread postby oddesy » Sat Nov 13, 2010 10:01 am

:whistle:
The beginning of knowledge is the discovery of something we do not understand.

"We are what we repeatedly do. Excellence, then, is not an act, but a habit." Aristotle

User avatar
Elzet
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 7460
Joined: Sun Mar 08, 2009 9:37 pm
Location: Daar waar die bobbejane hul borshare kam

Re: Insect Quiz (RV)

Unread postby Elzet » Sun Nov 14, 2010 6:55 am

Organisms such as tuna fish, skunk cabbages, butterflies, honey bees, crocuses, and others regularly warm their bodies to an appreciable extent through the use of metabolic heat.

In the case of insects - they 'shiver' to warm their wing muscles - shivering thermogenesis.
“Life is too short to wake up with regrets. So love the people who treat you right. Forget about those who don’t.” - Harvey MacKay

User avatar
Elzet
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 7460
Joined: Sun Mar 08, 2009 9:37 pm
Location: Daar waar die bobbejane hul borshare kam

Re: Insect Quiz (RV)

Unread postby Elzet » Sun Nov 14, 2010 7:05 am

Behavioral adaptations allow endothermic animals to exert some control over a given parameter - this is needed as they exceed certain activity levels that result in inevitable heating or when inactive, cooling.

In short it is called the energetics of locomotion in endothermic insects.

http://books.google.co.za/books?id=i9IT ... nd%20how&f


Ods, great Q! :clap: :clap: I am posting a page referring to this, but I'm not completely on par with your question (yet)! Stop studying, you are getting too clever. :lol: :twisted: :naughty: :rtm: :huh: :tongue:
“Life is too short to wake up with regrets. So love the people who treat you right. Forget about those who don’t.” - Harvey MacKay

User avatar
Elzet
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 7460
Joined: Sun Mar 08, 2009 9:37 pm
Location: Daar waar die bobbejane hul borshare kam

Re: Insect Quiz (RV)

Unread postby Elzet » Sun Nov 14, 2010 7:14 am

How?

* the sun - if cold
* shade - if hot
* micro habitat selection - on the ground, away from the ground
* vertical migration - away or towards ground
* stilting - if cold, close to the ground, if hot, away from the ground


High surface-to-volume ratio, it seems is why they can accomplish this phenomenon.


http://books.google.co.za/books?id=NHYu ... ns&f=false
“Life is too short to wake up with regrets. So love the people who treat you right. Forget about those who don’t.” - Harvey MacKay

User avatar
oddesy
Virtual Ranger
Virtual Ranger
Posts: 3183
Joined: Wed Jan 02, 2008 4:57 pm
Location: Randburg, SA

Re: Insect Quiz (RV)

Unread postby oddesy » Sun Nov 14, 2010 5:03 pm

:lol: :lol: Thanks E :thumbs_up: :thumbs_up:

You definitely got the first part of the question right because they do become endothermic when they fly and rapidly increase their muscle activity to generate the heat. Sometimes ecophysiologists make it very confusing to understand thermal biology and i saw in your link they used some of the terms. When you talk about endothermy or ectothermy you need to think about the source of the body heat. So endotherms generate heat through internal metabolic activity while besides maintaining a standard metabolic rate necessary for maintaining cellular integrity ectothermic animals rely on external sources of heat and for them behavioural thermoregulation is very important like you explained.

But then there are also poikilotherms and homeotherms and most often endotherms are homeothermic and ectotherms are poikilothermic but not always. Those terms refer to the regulation of the body temperature so homeotherms maintain a constant body temperature (Tb) while the Tb of poikilotherms varies alot. So this moth could be described as all 4 things at different times! :wall:

The high surface area to volume ratio is also very important. Here small animals like insects have much higher surface area to volume ratio (meaning they have a small internal volume in comparison to external surface area, while larger animals have a small volume in comparison to a large surface area) which means that they can loose heat and heat up more effectively.

So for the second part of the question about why these moths can act as endotherms even if they are so much smaller than the physiological minimum for mammals has got to do with what drives metabolism. The metabolism is driven by oxygen and is not usually a limiting factor except in extreme situations like this. So mammals breathe using their lungs and oxygen diffuses across the lung surface into the blood and is then used to power the metabolism and this diffusion takes a while and can be effected by many things such as partial pressure and the relative concentration of carbon dioxide and oxygen between the blood and in the lungs. The insects on the other hand have a respiratory system composed of spiracles which allow oxygen to effectively be in direct contact with the cells and therefore their physiological system can maintain endothermic activity despite their significantly smaller size.

Sorry for the long winded answer :wall: :redface:

E, you were very close so your IT! :thumbs_up: :thumbs_up: :clap: :clap: :thumbs_up: :thumbs_up: :clap: :clap:
The beginning of knowledge is the discovery of something we do not understand.

"We are what we repeatedly do. Excellence, then, is not an act, but a habit." Aristotle

User avatar
Elzet
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 7460
Joined: Sun Mar 08, 2009 9:37 pm
Location: Daar waar die bobbejane hul borshare kam

Re: Insect Quiz (RV)

Unread postby Elzet » Sun Nov 14, 2010 11:56 pm

:shock: :big_eyes: Ods, did you swallow an atlas. :lol: :lol: :lol: Jokes aside, I had to study up on some of the terms you have used. (I don't think I deserve to be IT, btw).


Long winded? Apologies. No, not at all. Very nicely explained. Very interesting info coming through! I saw the Tb whilst conducting research earlier, but I thought they were referring to a lung disease. :lol: :lol:


Animals (and insects) are unique and perfectly created. :clap: :clap: :dance: :dance: Thanks for the new insight. :thumbs_up: :thumbs_up:
“Life is too short to wake up with regrets. So love the people who treat you right. Forget about those who don’t.” - Harvey MacKay

User avatar
Siobain
Virtual Ranger
Virtual Ranger
Posts: 5215
Joined: Wed Feb 25, 2009 9:38 pm
Location: Johannesburg

Re: Insect Quiz (RV)

Unread postby Siobain » Tue Nov 16, 2010 11:04 am

Thanks Odds, really interesting! :thumbs_up:
He is rich or poor according to what he is, not according to what he has. ~Henry Ward Beecher

User avatar
Elzet
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 7460
Joined: Sun Mar 08, 2009 9:37 pm
Location: Daar waar die bobbejane hul borshare kam

Re: Insect Quiz (RV)

Unread postby Elzet » Thu Nov 18, 2010 10:36 pm

We were mistaken for the young of praying mantises
# 13 was not our unlucky number
Our eggs are awakened by autumn rains
We like cold and wet conditions
To study us, scientists explored the structure of our genitalia.

What are we and tell me a bit more.
“Life is too short to wake up with regrets. So love the people who treat you right. Forget about those who don’t.” - Harvey MacKay

User avatar
Imberbe
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 14486
Joined: Wed Aug 31, 2005 12:28 am
Location: Pretoria, RSA

Re: Insect Quiz (RV)

Unread postby Imberbe » Sun Dec 12, 2010 11:37 pm

Heel walkers.
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

Want to know more about the SANParks Honorary Rangers? Visit www.sanparksvolunteers.org


One positive deed is worth more than a thousand critical words.

User avatar
Imberbe
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 14486
Joined: Wed Aug 31, 2005 12:28 am
Location: Pretoria, RSA

Re: Insect Quiz (RV)

Unread postby Imberbe » Thu Jan 20, 2011 10:17 pm

Explain how a male bed bug can impregnate a female bed bug without ever coming in to direct contact with her.
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

Want to know more about the SANParks Honorary Rangers? Visit www.sanparksvolunteers.org


One positive deed is worth more than a thousand critical words.

User avatar
onewithnature
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 22282
Award: Quiz Whiz of the Year (2013)
Joined: Tue Dec 23, 2008 5:22 am
Location: Midway between the infinite and the infinitesimal!

Re: Insect Quiz (RV)

Unread postby onewithnature » Fri Jan 21, 2011 5:14 am

:hmz: Doesn't sound too exciting a life, though. :lol:
EVERYBODY'S TR!
TR: A NEW DAY IS S-OWN
TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

"Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read." (Groucho Marx)

User avatar
bishop3006
Senior Virtual Ranger
Senior Virtual Ranger
Posts: 5598
Joined: Thu Nov 06, 2008 4:45 pm
Location: Pretoria

Re: Insect Quiz (RV)

Unread postby bishop3006 » Fri Jan 21, 2011 7:59 am

Bad things, these rapists and sodomisers.
Marius
Hunter, nature lover, conservationist.

I believe that for man to survive, we must work with nature rather than against her. We need the land; the land doesn't need us. Too many people have lost sight of this fact. - Bruce Truter

User avatar
Imberbe
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 14486
Joined: Wed Aug 31, 2005 12:28 am
Location: Pretoria, RSA

Re: Insect Quiz (RV)

Unread postby Imberbe » Sat Jan 22, 2011 12:05 am

:whistle:
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

Want to know more about the SANParks Honorary Rangers? Visit www.sanparksvolunteers.org


One positive deed is worth more than a thousand critical words.

User avatar
Imberbe
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 14486
Joined: Wed Aug 31, 2005 12:28 am
Location: Pretoria, RSA

Re: Insect Quiz (RV)

Unread postby Imberbe » Tue Mar 01, 2011 11:02 pm

Imberbe wrote:Explain how a male bed bug can impregnate a female bed bug without ever coming in to direct contact with her.


:tongue:
Imberbe = Combretum imberbe = Leadwood = Hardekool = The spirit of the Wildernis!

Want to know more about the SANParks Honorary Rangers? Visit www.sanparksvolunteers.org


One positive deed is worth more than a thousand critical words.

User avatar
onewithnature
Distinguished Virtual Ranger
Distinguished Virtual Ranger
Posts: 22282
Award: Quiz Whiz of the Year (2013)
Joined: Tue Dec 23, 2008 5:22 am
Location: Midway between the infinite and the infinitesimal!

Re: Insect Quiz (RV)

Unread postby onewithnature » Thu Mar 03, 2011 5:38 am

The male pierces the female's abdomen with his penis and injects his sperm through the wound into her abdominal cavity. The sperm actually diffuses through the fluid surrounding the insect's cells, until it reaches the ovaries and results in fertilization.

Very unromantic, in my opinion. :hmz:
EVERYBODY'S TR!
TR: A NEW DAY IS S-OWN
TR: NECTAREAN NICETIES OF THE NORTH
TR: PRIMEVAL PLEASURE

"Outside of a dog, a book is a man's best friend. Inside of a dog, it's too dark to read." (Groucho Marx)


Return to “Quizzes”