Organisms

Animals!

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larock01
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Organisms

Post by larock01 » Sat Apr 15, 2006 9:30 pm

A biologist isolates an organism from a pond and describes it in his lab notebook as having both a larval and an adult stage, air-breathing lungs, the digestive system of a carnivore, eggs that lack shells, and camouflage epidermis that secretes toxins, and as exhibiting external fertilization. What is the organism being described?

I am hesitating on the following:
- A snake
- A frog
- A freshwater clam
- A salamander
- A lungfish

Thanks in advance for your much needed help!

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February Beetle
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Post by February Beetle » Sat Apr 15, 2006 10:29 pm

A snake doesn't have a larva and adult stage.
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larock01
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Post by larock01 » Sat Apr 15, 2006 11:17 pm

im thinking lungfish or salamander? However, I am not sure.
Can someone help?

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Post by alextemplet » Sun Apr 16, 2006 12:29 am

My guess, for what it's worth, is frog.
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larock01
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Post by larock01 » Sun Apr 16, 2006 12:51 am

Can anyone else maybe confirm that?

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Post by kiekyon » Sun Apr 16, 2006 1:30 pm

yeah, a frog.

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Linn
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Post by Linn » Sun Apr 16, 2006 3:25 pm

What is a ......

Clam :idea:
"How far you go in life depends on your being tender with the young, compassionate with the aged, sympathetic with the striving and tolerant of the weak and strong. Because someday in life you will have been all of these".

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Post by larock01 » Sun Apr 16, 2006 4:49 pm

Here is what clam is:

http://en.wikipedia.org/wiki/Clam

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Linn
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Post by Linn » Sun Apr 16, 2006 5:11 pm

A snake ...No
- A frog ....No
- A freshwater clam ...YES!
- A salamander...No
- A lungfish >>>No

The larva stage of clam :idea:
"How far you go in life depends on your being tender with the young, compassionate with the aged, sympathetic with the striving and tolerant of the weak and strong. Because someday in life you will have been all of these".

~ George washington Carver

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Linn
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Post by Linn » Sun Apr 16, 2006 5:16 pm

1.deduction by elimination.
2. research key word: clam larva stage
"How far you go in life depends on your being tender with the young, compassionate with the aged, sympathetic with the striving and tolerant of the weak and strong. Because someday in life you will have been all of these".

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Post by Beetle » Mon Apr 17, 2006 10:28 am

How can it be clam when it has air-breathing lungs?! It is frog or/and salamandra. There are no difference between them in these shown characteristics except maybe for camouflaged skin which is more common in frogs although some salamanders can have it too (although thay usualy have aposematic colored skin). So I say it is most definatly FROG!
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Post by kabuto » Mon Apr 17, 2006 12:31 pm

sounds like a rog for me, ok not all frogs but i definitey have heard of frogs that produce very powerful toxin

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