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The process through which a biological organism grows to maturity. In certain contexts it can mean the changes the organism goes through over its entire lifetime.

17 votes
1 answer
12k views

Do babies resemble their father?

An often heard theory is that newborns and babies resemble the father more than the mother, a theory apparently ignited by a Nature paper by Christenfeld and Hill (1995). Figure 1 shows one of the tes …
AliceD's user avatar
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21 votes
1 answer
2k views

What is the biological age of grafted plants?

Suppose you graft a piece of an existing 'old' plant onto a host plant. Will the graft continue to grow having the same biological age as its parent? In other words, would the graft die at the same ti …
AliceD's user avatar
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