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Spiral

Spiral

Of leaves or floral organs, borne at different levels on the main stem, in an ascending spiral.

Compare: cyclic.


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Pitfalls of Evolutionary Psychology: Exaptation

... random. Using a metaphor, consider that the Golden Ratio (Phi) 1.618 is abundant throughout the universe and can be seen both in the math of the spiral formed by Nautilus mollusks and the spiral in galaxies seen by the Hubble space telescope. Rather than viewing our existence as some unique product ...

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by jeremyo
Mon Aug 17, 2009 12:12 am
 
Forum: Evolution
Topic: Pitfalls of Evolutionary Psychology: Exaptation
Replies: 3
Views: 140

Re:

... I am happy to guide you. Give a try. Oh, brother. Fasting is ill advised in my opinion. Setting religion aside, fasting can send your body into a spiral of so many health problems I cannot mention them all. It is ill advised to fast. Consider this, if god wanted you to fast, God would never have ...

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by MichaelXY
Sun Jul 26, 2009 10:44 am
 
Forum: Physiology
Topic: Stomach bloating and weight gain
Replies: 299
Views: 484437

Protostomes and Deuterostomes

... mouth first in protostomes, and the anus first in deuterostomes. There are other differences as well. Google the patterns of cleavage each does (spiral in protostomes and radial in deuterostomes). Hope that helps!

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by plasmodesmata11
Mon Feb 23, 2009 12:16 am
 
Forum: Zoology Discussion
Topic: Protostomes and Deuterostomes
Replies: 4
Views: 1391

Re: Pond Scum

... even more yet to be discovered. An excellent source of reference material would be Jahns, "how to know the Protozoa" Second Edition, spiral bound and then there is also in the "how to know" series one on Algae also, it too is spiral bound. If you are an intent observer of ...

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by Ken Ramos
Sun Jun 29, 2008 1:40 am
 
Forum: Ecology
Topic: Pond Scum
Replies: 4
Views: 2817

The Physics of how the Myelin Sheath actually works.

... nerves and oligodendrocytes do so in the central nervous system. These glial cells wrap layer upon layer of their own plasma membrane in a tight spiral around the axon (Figure 11-30), thereby insulating the axonal membrane so that little current can leak across it. The myelin sheath is interrupted ...

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by Nebulae
Wed Feb 27, 2008 8:42 am
 
Forum: Human Biology
Topic: The Physics of how the Myelin Sheath actually works.
Replies: 17
Views: 2985
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