Apr 152014
 

Question by Gremio: rephrased the previous question: are we also chemical, physical and mecanical (beyond biological)?
Are we? I’m not asking about, you know, consciousness, spirit. I’m focusing only on the materialistic point of view. Thanks.

Best answer:

Answer by Sir Crocodile
My personal opinion is that we are firstly chemical and physical, and then biological. Why? Because everything in the word (including all organisms) is made of atoms and the principles of their interactions and way of order (grouping into molecules) is described by physical ideas. Latter on, every single one of our functions is due to constant running of chemical (biochemical) reactions in our body (we are chemical laboratories).

Simply put: we are matter, our bodies are made of atoms and molecules. Even the organic molecules consist of atoms from inorganic world (nitrogen, calcium, magnesium etc). After we die our organic matter is broken down to simple molecules (organic and inorganic) by microorganims. Then “we” (our molecules) enter the cycle of matter – our matterials are used up by plants and microorganisms to create new organic matter that other animals (including humans) consume, then these animals (including humans) enter the cycle. And this is repeated again and again.

Also, it is very important to mention that we are energy (im talking in physical therms, not spiritual). Our energy is never lost, but used up in cycle of matter by other living forms.

Im molecular biologist. Molecular biology applies vast number of ideas, theories and methods taken from physics, chemistry and mathematics. It is a science that applies other natural disciplines ideas and methods to living systems. I have always claimed that without the 3 mentioned disciplines above nowadays biology (covering genetics, biochemistry, physiology, ecology, biophysics etc, with few exceptions, of course) wouldn’t be as high as it is now.

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Mar 142013
 

Question by Faith: What is the difference between biological science and physical science in the MCAT?
if Biological science is the study of the cell/biology and includes chemistry!
then physical science would be all PHYSICS?!!!!! I hope not :(

Best answer:

Answer by CPlusPlus Guru
“The Physical Sciences section assesses problem-solving ability in general [ie. inorganic] chemistry and physics and the Biological Sciences section evaluates these abilities in the areas of biology and organic chemistry.”

“The Physical Sciences section is administered first. It is composed of 52 multiple-choice questions related to general chemistry and physics. Exam takers are allotted 70 minutes to complete this section of the exam.”

The Physical Sciences section is in multiple-choice format, so it shouldn’t be too hard. Still, you should study, alone or with a tutor.

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Jan 142012
 

Question by Hanii: Could the continuity of consciousness be preserved through the transition of a biological brain to a purely?
Could the continuity of consciousness be preserved through the transition of a biological brain to a purely artificial brain through the gradual introduction of artificial components matching in operation the sections of the brain they’re replacing? What are your thoughts?

If not, in what point in the process do you think the continuity of conscious existence would be eliminated? And why?

Best answer:

Answer by David
I think I see where your coming from with this, and no, I’m fairly sure you’re missing a thing or two. You need to realise that physical consciousness isnt some thing that is separate from the brain. From a completely non-biased biological standpoint, consciousness is the collective entity of brain signals from the cells of the brain responding to bodily stimulus. Without having something to send and receive those signals in the EXACT manner as the desired individual, it would be impossible by means of modern technology to create an artificial medium capable as serving effectively as a “replacement brain” I wouldn’t say it’s not possible, it’s just not possible yet.

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Aug 202011
 

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Jul 102011
 

Synthesis of Biocomposite Materials Chemical and Biological Modifications of Natural Polymers

Biomaterials have been used for artificial-organ and bioreactor materials, and have gained importance for enhancement of human welfare. This book summarizes research devoted to creating useful biofunctional materials by chemical modification of natural polymers, and forecasts future development.

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Jan 162011
 

Biological transmutations, and their applications in chemistry, physics, biology, ecology, medicine, nutrition, agriculture, geology,

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Jan 012011
 

Question by John (Thurb) McVey: Did human consciousness arise primarily from biological or cultural evolution?
Some scholars think language, gateway to complex communications and abstract thought, resulted from simple words and sentences being passed down culturally much as different bands of chimpanzees culturally transmit grooming behaviors. Others think evolution of the brain came directly from environmental pressures. A few crackpots (or are they?) , even scholars of the calibre of Julian Jaynes, think intelligence developed in a bicameral brain prior to true consciousness, and the right brain– repository of collective “wisdom”– directed behavior through hallucinatory “revelations”, accounting for Homeric Greeks having “visits” by Athena and other gods. Jaynes believed massive disasters led to a diverse refugee population for which the tribal gods’ traditional wisdom stored in the right parietal lobe had few answers, so consciousness unfolded in response to new dangers. Comments from fans of Jaynes, Gregg D. Jacobs, others? Any thought-out scholarly or amateur comments welcome.

Best answer:

Answer by rjbeaner
I would say biological at first premiere, followed by cultural.

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Dec 112010
 

Question by Blue: What is the biological basis for the cannibalism taboo?
If there is one, I mean. Other taboos, like the incest taboo have very clear biological roots. So why is cannibalism shunned by most human societies? It seems odd to me that starving or near starving people, which most of us were for most of our history, would simply reject a good source of calories and other nutrients without a sound biological basis.

Note: I’m talking about cannibalism only, not murder+cannibalism, or human hunting.

Best answer:

Answer by Robert
Cannibalism often results in the transmission of prionic diseases. Besides that, there really aren’t any reasons. In fact, I’m currently researching the legality of leaving my rectus femoris to a friend to eat after my death… no joke :)

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