Search found 19 matches

by JDavidE
Sat Jul 21, 2007 10:21 pm
Forum: Evolution
Topic: ARE WE CROWDING THE EARTH?
Replies: 16
Views: 12951

Interesting I find it difficult to legitimise a rationale for this ‘house of cards’ scenario, Charles. And certainly more difficult to predict the breaking strain if it were legitimate. I would have thought the evolutionary dictum would be a decline in birth rate the more a society evolved technolog...
by JDavidE
Fri Jul 13, 2007 2:02 am
Forum: Evolution
Topic: self pollinating plants.
Replies: 7
Views: 16699

Self pollinating plants have no genetic means of variation, they must breed true and be identical to the parent. Neighbouring plants, receiving pollen from different plants, will reflect variation. A problem with self-pollination is that inevitable genetic errors are transferred to the succeeding ge...
by JDavidE
Tue Jun 26, 2007 11:45 pm
Forum: Evolution
Topic: bad science example
Replies: 7
Views: 6249

Sorry, Charles. I agree with Darby’s reply. I have read your various submissions (and responses to other topics) and though I see the point you are making, I just don’t accept it. Though maybe I am being obtuse. I think it is the fact that we (our species) are capable of cultural imprinting that all...
by JDavidE
Tue Jun 26, 2007 12:53 am
Forum: Evolution
Topic: Evolution of reproduction: Mobility of cells
Replies: 6
Views: 7588

MrMistery wrote:A similar process has occured with plants. However, i have no time to explain that now. maybe later or tomorrow.


In particular, that strange half-way step in the reproductive cycle of Bryophyta.

David
by JDavidE
Wed Jun 20, 2007 11:48 pm
Forum: Evolution
Topic: Predator
Replies: 3
Views: 3023

I'm curious as to where you are going with that.

Every organism is a consumer. We, loosely, envision predators as being carnivores. But many carnivores are solely scavengers. And, I suppose, in the broadest sense, garden snails are predators of our lettuces.
by JDavidE
Sat Jun 16, 2007 10:44 pm
Forum: Evolution
Topic: SOCIETIES evolve also
Replies: 16
Views: 13375

You suggest that meme theory doesn't explain it, but your explanation falls into meme theory. For example, our social structure causes us to smile as a disarmament tool. In other primates, baring the teeth is an agressive posture. Somehow, these social attributes are as heritible as our physical att...
by JDavidE
Fri May 18, 2007 10:27 pm
Forum: Evolution
Topic: God vs Evolution
Replies: 274
Views: 362798

Seemingly, no one has noticed that Jeremiah, who originally posed the question, having put the cat amongst the pigeons has quietly slipped away, his mischief done. There are twelve pages devoted to this pointless debate and no further interest by Jeremiah. When fundamentalists (in any sphere of deba...
by JDavidE
Thu May 17, 2007 11:11 pm
Forum: Evolution
Topic: why is green photosynthesis so dominant?
Replies: 14
Views: 8651

As it is, chlorophyll absorbs a pretty wide range of frequencies, at a heavy peak of intensity. Precisely. Although there are likely to be specialists, it is far more practical to use morphology or structure to moderate the available light. Low-light conditions producing large leaves (usually widel...
by JDavidE
Sat May 12, 2007 2:24 am
Forum: Evolution
Topic: God vs Evolution
Replies: 274
Views: 362798

Re: God vs Evolution

I believe God created the universe and everything in it. And that evolution is an incorrect 'THEORY' made by the human race to neglect God. Just two questions here, Jeremiah. The second one first: Why would the human race go to the trouble of making up a theory in order to neglect God? Where is the...
by JDavidE
Thu Mar 22, 2007 9:58 pm
Forum: Evolution
Topic: A Monkey's Uncle
Replies: 26
Views: 75249

Thanks, Darby. You’ve given me some valid points to work with. Let me just quickly clarify a couple of items. "...you seem to see the whole biosphere as one organism" I don’t actually see it that way, Darby, I am just positing a ‘what if’. "...you seem to be claiming that chimps and h...
by JDavidE
Sat Mar 17, 2007 11:00 pm
Forum: Evolution
Topic: A Monkey's Uncle
Replies: 26
Views: 75249

I'll take the high-road on your first comments, and not be mean. "predation rate" means the ratio of individuals killed by predators. Yes, more predators show up for these swarms, but the predator to prey ratio (and thus the predation rate) is still lower than if they were spread out over...
by JDavidE
Sat Mar 17, 2007 10:35 pm
Forum: Evolution
Topic: A Monkey's Uncle
Replies: 26
Views: 75249

The journey of Earth has always been towards more and more order. Really? Complexity creates order? my question here is, what is the alternative to a building up in evolution? A sudden appearance of multicellular organisms? Maybe not but why not? We accept that a collection of amino acids (that we ...