The answer is true letter a
The answer to this question is <span>Developmental Levels II and III
During developmental level 2 and 3, the routines and exercise SHOULD serve a certain purpose. The exercise doer should know beforehand what type of results that they wanted to achieve and structure the routines to achieve that specific goals (for example, if they wanted to focus on losing weight without gaining muscle, they should put more time in cardio)
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The main reason that most farmers use stem cuttings rather than just planting a seed is that a tree's genetic variation will occur. The seeds of many fruit trees tend to vary differently from the parent, because seeds themselves are produced by sexual reproduction (i.e they receive genes from a male and female to form). As they are a cross from two sets of genes, many fruit trees are not “true to seed”. Their seeds will produce a generally different variety of tree from the parent. When using stem cuttings, it's almost like a cloning process.
They respire and give off c0^2
