After folic acid supplementation became standard in the u. s., the frequency of neural tube defects dropped to an average of just 1 in 5,000 live births. the observed frequency in the experimental group of the smithells study was much higher than 1 in 5,000. select the two best explanations for why this would be. the observed frequency in the experimental group of the smithells study was much higher than 1 in 5,000. select the two best explanations for why this would be. the individuals in the study may have been predisposed to neural tube defects. the individuals in the study were randomly assigned to the control or experimental group. the sample size in the smithells study was small. the sample size in the smithells study was large.

What is the name for a substance formed in a chemical reaction

Which statements about the fluid mosaic structure of a membrane are correct? select the three correct statements. which statements about the fluid mosaic structure of a membrane are correct? select the three correct statements. the framework of a membrane is a bilayer of phospholipids with their hydrophilic heads facing the aqueous environment inside and outside of the cell and their hydrophobic tails clustered in the center. because membranes are fluid, membrane proteins and phospholipids can drift about in the membrane. the diverse proteins found in and attached to membranes perform many important functions. the kinky tails of some proteins keep the membrane fluid by preventing the component molecules from packing solidly together. membranes include a mosaic, or mix, of carbohydrates embedded in a phospholipid bilayer.

Select all that apply genes are specific nucleotide sequences occur in numbers that are the same as the number of chromosomes are located in a specific place on a chromosome determine the traits of an organism are units of rna