Consider the information given below: Meat (unis)
0
200
400
600
800
1000
Wheat (units)
2000
1800
1500
1100
600
0
a
Draw the production possibility curve. (Put meat on the X-axis.)

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

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unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.