When we doing strawberry extraction, why do we have to remove the air as much as possible before we seal the bag?

Prior to the development of dna fingerprinting, blood type could be used to determine possible parentage. although it might prove someone was not a parent, it could not show if someone was positively the parent, only that he or she might be a parent. which of the following is a true statement that can be made about parentage based on blood typing?

Anton created a chart listing different types of materials. which best complete the chart?

How does science influence the decisions made about social, economic, and political issues?