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Obstacle

Obstacle

That which stands in the way, or opposes; anything that hinders progress; a hindrance; an obstruction, physical or moral. If all obstacles were cut away. And that my path were even to the crown. (Shak)

Synonym: Impediment, obstruction, hindrance, difficulty. See Impediment, and obstruction.

Origin: f, fr. L. Obstaculum, fr. Obstare to withstand, oppose; ob (see ob-) _ stare to stand. See stand. And cf. Oust.


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Homosexuality - mutation? Evolutionary reasons.

... hypothesis to test, since I'm sure most homosexuality in oppressive societies goes unreported. Which leads us to what is probably the biggest obstacle when studying this behavior, and that is how do you study it? How do you even define it? I like comedian Ron White's description of homosexuality ...

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by alextemplet
Thu Nov 20, 2008 1:29 am
 
Forum: Evolution
Topic: Homosexuality - mutation? Evolutionary reasons.
Replies: 33
Views: 5493

Question: Which of the following is not secreted by sweat

Wikipedia is sometimes innacurate. Its not that I would be asking for you to do my homework. I do my homework myself but when I come upon an obstacle, I would like to seek for help in a community filled with scholars (biology-online.org).

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by Here2Learn
Mon Jan 14, 2008 2:49 am
 
Forum: Human Biology
Topic: Question: Which of the following is not secreted by sweat
Replies: 6
Views: 462

Recent discovery in stem cell research.

... in around 20 different spots. So yes, it is only in this method right now, but I don't think it's inherently a design flaw, more like a technical obstacle.

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by mith
Tue Nov 27, 2007 2:23 am
 
Forum: Human Biology
Topic: Recent discovery in stem cell research.
Replies: 19
Views: 2028

How does the seed know which direction to sprout?

Good question My guess is they will grow in whatever direction they happen to begin growing unless they hit an obstacle(and ethylene directs the plant going round it) or there is a unidirectional source of light(case in which phototropism takes over: the stem grows towards the ...

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by MrMistery
Mon Sep 10, 2007 5:35 pm
 
Forum: Botany Discussion
Topic: How does the seed know which direction to sprout?
Replies: 5
Views: 1594

1 crazy idea

Woo I like it. Someone does their homework! :lol: It sounds like a reasonable idea to me. The main obstacle would be the protein would have to bind to the HIV immediately following exposure because HIV has Reverse Transcriptase i.e.it can replicate its own DNA and integrates ...

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by Katy_Bobbles
Fri Jun 22, 2007 10:42 am
 
Forum: Cell Biology
Topic: 1 crazy idea
Replies: 11
Views: 1114
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