when you're doing an experiment on enzymes when you add acid+saliva+starch+iodine why does the colour change to blue black​

If the nucleus of a cell was removed the cell wouldn’t be able to make proteins because

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

Antoine manages a number of apartment buildings that use natural gas for heating, cooking, and laundry. the scatter plot shows the correlation between the outside air temperature and antoine's natural gas bill. which type of correlation does the plot illustrate?