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bkmather

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bkmather

Reflex actions and newborn feeding?

Does anyone know the psychology and/or biology behind the root and suck reflexes of newborn babies?
13:04 Wed 12th Feb 20032 answers, last by louiseinglis 13:45 Mon 03rd Mar 2003
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bkmather

Why do embryotic cells differentiate?

When an embryo is developing, what causes a change in DNA sequence resulting in cells differentiating? I understand the concept of stem cells being specific to the heart, liver, etc. but why do the...
22:43 Wed 08th Jan 20031 answer, last by j2buttonsw 21:09 Thu 09th Jan 2003
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bkmather

Eyes, and interpretation of colour

Hi, I understand the idea of how the eyes take in light, and how they respond to colour, but one thing has puzzled me. If you stare at a piece of red card for a minute or so, then quickly flick to a...
02:15 Sat 21st Sep 20023 answers, last by Hippy 19:16 Thu 26th Sep 2002

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