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K shell

K shell

The innermost electron orbit or shell; it can hold two electrons.


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Beetle identification

... beetle? I found it floating in our pool. it appears to have a proboscis and I thought I saw a thin white band along the edge of the front of its shell. thanks in advance for your help! :D

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by Greylan
Thu May 02, 2013 1:47 am
 
Forum: General Discussion
Topic: Beetle identification
Replies: 1
Views: 1016

Re:

... then the crab is too dark. And more details. Well.. The crab are now a chili crab for sure.. But from the first and third image, the type of shell, not from the under parts, maybe people can tell something about this crab..

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by edbertp
Sun Jan 20, 2013 5:06 pm
 
Forum: Zoology Discussion
Topic: Need details for this type of crab
Replies: 5
Views: 2302

Re: What sea creature is this?

Looks like a chiton. I think you're right. The "white ridges" are apparently the remains of the articulated shell plates that normally cover it. This one seems to correspond to photos of the "gumboot" chiton.

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by wernerpels
Thu Dec 20, 2012 4:59 pm
 
Forum: Zoology Discussion
Topic: What sea creature is this?
Replies: 2
Views: 1393

What sea creature is this?

I found this animal washed up on the beach. A hard top with protruding white shell-like ridges. A soft "foot". snailtop.jpg snailfoot.jpg

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by wernerpels
Wed Dec 19, 2012 10:38 pm
 
Forum: Zoology Discussion
Topic: What sea creature is this?
Replies: 2
Views: 1393

Book recommendation for exam

... in insects and its hormonal regulation; social organization in insects (termites and honey bees). 10. Mollusca : Feeding, respiration, locomotion, shell diversiy; general features and life history of Lamellidens, Pila and Sepia, torsion and detorsion in gastropods. 11. Echinodermata : Feeding, ...

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by bertstare
Sun Oct 21, 2012 2:19 pm
 
Forum: Zoology Discussion
Topic: Book recommendation for exam
Replies: 3
Views: 4756
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