Noncarbohydrate precursors of glucose are first converted into pyruvate or enter the pathway at later intermediates such as oxaloacetate and dihydroxyacetone phosphate . The major noncarbohydrate precursors are lactate, amino acids, and glycerol.
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Answer:
Evolution reflects the adaptations of organisms to their changing environments and can result in altered genes, novel traits, and new species. One mechanism that drives evolution is natural selection, which is a process that increases the frequency of advantageous alleles in a population.
Explanation:
Answer:
Explanation:
1. Production of sperm by meiosis
2. diploid generation which alternates with haploid (in plants)