Classical biotechnology dates back about 100, 000 years ago.
The atomic number or (also called) the proton number, represents the number of protons, which also represents the number of electrons in that single atom itself (an atom which has not gone through reactions of any kind will have the same number of electrons as number of protons).
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P.s. This question seems more of a Chemistry than Biology question in my opinion
The one that is caused by the modification of density-independent factors is : parasitic wasp invade cocoons, killing caterpillars
Density independent factors refer to occurrences that limit the number of a specific population
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Answer:
let the three parts be
5x + 3x + 4x = 250
so on adding
12x = 250
x = 20
so it will be divided into three parts as
5 × 20 = 100
3×20= 60
4×20 = 80
Explanation: