Nest-building for example is essential for survival in a life played out among tropical tree tops.
Superior spatial analysis and memory, for example, was essential for the caveman to hunt and then find his way back home.
The expansion of the national level government at the expense of various local and state level governments in the 1960s, for example, was essential to ending what had been roughly a century of American apartheid.
Ascl1, for example, is essential during embryogenesis for neural differentiation [5], is homologous to proneural genes in Drosophila [6], and functions counter to Notch signaling to balance progenitor and differentiation states [5].
Transcriptional factor sox9, for example, is essential for morphogenesis of condensation and cartilage differentiation in zebrafish (Yan et al. 2002) and regulates the expression of miR-140 (Nakamura et al. 2012).
Examples are essential for students to understand concepts (NRC, 2005), so instructors should routinely show students nucleotide sequences that affect traits being discussed.
"Looking into specific examples is essential for Congress to understand how effectively the S.E.C. pursues referrals such as these".
For example, simulations are essential to justify proposed process retrofits and conceptual design targets are important in estimating the maximum possible cost reductions.
For example, RNS are essential for resistance to Mycobacterium tuberculosis and Leishmania major [12], [28], but appear to be dispensable in host defense against Legionella pneumophila and Pseudomonas aeruginosa [25].
For example, neutrophils are essential for controlling bacterial burdens and the extent of brain abscess dissemination (Kielian et al., 2001), whereas microglia/macrophages are typically localized along the abscess margins (Flaris and Hickey, 1992; Kielian et al., 2008).
