A 32-year-old woman is trying to get pregnant a second time. Her fırst pregnancy resulted in a baby with spina bifida. Her physician wants to make sure that she has sufficient levels of folic acid during her pregnancy. During which week of embryonic/ fetal growth is it MOST important to have sufficient folic acid to prevent neural tube defects? O week 36 O Week 4 O week 20 O week 16 O with 10

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Animal Phylogeny

Cladistics is a method of biological classification where organisms are classified based on their ancestors and their relationship with them. It is defined as the concepts and methods for determining the branching patterns of evolution and evolutionary history. Some scientists, however, have preferred the term phylogenetic systematics or phylogenetic taxonomy to emphasize the reliance on a phylogeny for classification. It is the most common and accepted method for classifying organisms.