Search found 8 matches

by jasonP
Thu May 29, 2008 1:05 am
Forum: General Discussion
Topic: What is Life?
Replies: 3
Views: 2299

What is Life?

Nothing inatimate can reproduce itself, only living entities can do that. That is one of the reasons why biologists believe a strand of RNA was the first living life form. It was a chemical strand that could reproduce itself. It had no metabolism. It could only reproduce itself. Therefore, at that s...
by jasonP
Thu May 15, 2008 7:25 pm
Forum: Evolution
Topic: The Trigger for Human Evolution from the Ape
Replies: 18
Views: 16421

Re: The Trigger for Human Evolution from the Ape

Morgyn and Alex you are both correct. Major environmental changes were occuring a few million years ago and directly impacted human evolution. Researchers believe major dry and wet spells rapidly came and went. The big question is did the dry spells make early humans evolve into homo-sapiens or was ...
by jasonP
Tue May 13, 2008 7:34 pm
Forum: Evolution
Topic: The Trigger for Human Evolution from the Ape
Replies: 18
Views: 16421

Re: The Trigger for Human Evolution from the Ape

I also think another issue is female sexual selection. Females were likely attracted to more intelligent males and mated with them. Or perhaps the females never detected intelligence. Maybe a more advanced tool resulting from intelligence helped to bring more food and shelter to offspring. The femal...
by jasonP
Tue May 13, 2008 3:38 pm
Forum: Evolution
Topic: The Trigger for Human Evolution from the Ape
Replies: 18
Views: 16421

Re: The Trigger for Human Evolution from the Ape

Thank You! You're logic makes sense to me. It does make sense the ape needed to migrate to have more space and food consuming capability. So from you're viewpoint do you believe the "trigger" was also food competition but with a need for space? Also, I did make a mistake in my original pos...
by jasonP
Tue May 13, 2008 3:18 pm
Forum: Evolution
Topic: The Trigger for Human Evolution from the Ape
Replies: 18
Views: 16421

The Trigger for Human Evolution from the Ape

As many biologists know, evolution by means of natural selection will act on the specific handful of individuals from a species who decide to live in a different habitat, among many other causes for evolution by natural selection. These few individuals will evolve via natural selection which will re...
by jasonP
Tue May 13, 2008 2:42 pm
Forum: Evolution
Topic: Origin of Life
Replies: 15
Views: 11123

Re: Origin of Life

So according to the article a heat source was not needed. It was the close proximety of particles that allowed them to react with each other. That is a sensible theory. The information I told you was from my college Biology textbook copyrighted 2005 so it is accurate to a certain extent. But you are...
by jasonP
Tue May 13, 2008 2:14 am
Forum: Evolution
Topic: Origin of Life
Replies: 15
Views: 11123

Re: Origin of Life

I just read the discover article and I must say it is fascinating! Interestingly, it refutes everything I just said in my last post! How could have the molecules react in the sea ice without a heat source in the ice?
by jasonP
Tue May 13, 2008 1:02 am
Forum: Evolution
Topic: Origin of Life
Replies: 15
Views: 11123

Re: Origin of Life

As of 2005 biologists believe that very early in Earth's history the simple chemicals: Carbon Monoxide, Carbon Dioxide, hydrogen, ammonia, water, and nitrogen were present in the atmosphere. Sunlight produced energy for these chemical compunds to undergo redox reactions with each other. As a result,...