Biology Hunger pangs usually begin ______ after the previous meal. Options:A. 2-4 hoursB. 6-8 hoursC. 10-12 hoursD. 12-24 hoursView AnswerD. 12-24 hours Continue Reading Previous: _________________ cells of phloem are directly involved in transport of organic solutes?Next: Exposure to low temperature stimulates plants to flower. This is called___________?