Biology | Forum profile

Originally Posted by jobyts Yes, I'm specifically talking about the humans and its origin. About the continents; How did the humans or our ancestor apes moved from Africa/Asia/Europe to Americas and Australias. We walked... mostly. Migration of humans, H. Erectus, began from Africa to Eurasia about 2 million years ago they didn't make it too, too far they went to about souteastern asia. Anyways H. Sapiens then migrated out of...

Originally Posted by Ouabache Whether recent or historic, selection pressures allow useful traits to be passed on while others are discarded. Yes, that is the tendency . But it is not a rule. There are untold numbers of traits we have that have never been selected out. In fact, anything short of the perfect organism means that traits have not been bred out. We still have three separate brains, including the most primitive "lizard...

I hear what you are saying, but I'm not going to give up eating all carbohydrates for the rest of my life. :)

Originally Posted by Newai Eh, not really. My family has been very unhealthy for me. For example, I'm the only one here who isn't racist. So, I'm in that odd position of trying to understand good deeds. Hence my post. Well done to you, Newai - to overcome an irrational position that was apparently laid upon you through nurture. I guess that open another question in this thread of, is helping people (or not helping people)...

I could edit, but if someone has seen the answer would miss the edit. First answer was wrong - she checked details. Salmonella can colonize/infect oviducts, so it can be found everywhere, not only on the shell but both in yolk and white. -- buffer calculator , concentration calculator pH calculator , stoichiometry calculator

Originally Posted by Ygggdrasil A statement like "sequence A is 95% homologous to sequence B" is commonly used and it could be considered correct. It can be somewhat ambiguous because there is a distinction between sequence identity (i.e. regions where sequence A and sequence B code for exactly the same amino acids) and sequence similarity (i.e. regions where sequence A and sequence B code for amino acids with the same...

I'm probably being awfully biased here, but I'd say punctuated equilibrium is what most respectable biologists would agree upon as of the past few years.

Could you quote exactly what it said, maybe it's just badly written, It probably means that sugars aren't found in mono or di-saccarhides in large quantities and we have to eat poly's found in plant material.

Originally Posted by Andy Resnick I hear what you are saying, but I'm not going to give up eating all carbohydrates for the rest of my life. :) Ha, me neither. Whether they're needed biologically or not they're tasty

Re: http://www.tc.umn.edu/~cmicheyl/demos.html I listened to the three samples. I could clearly hear two tones in each. Re: http://www.ncbi.nlm.nih.gov/pubmed/1...m&ordinalpos=1 Auditory System o Its functions o Its components o Its component interactions Functions o To detect things (enemy, friend, food) o To locate things (enemy, friend, food) (called Auditory Spatial processing) o To communicate meaning Components o Ears...