What prezygotic reproductive isolating mechanisms best explains why salamanders that mate in May do not successfully mate with salamanders that mate in July?

Which of these statements are true about scientific theories and hypothesis

Which best describes the digestive system of arthropods? a incomplete, two openings b complete, one opening c two-way, one opening d one-way, two openings

Glycogen is an energy-storage molecule in humans. a hormone that is called insulin controls the storage of glycogen in the liver. insulin is made up of amino acids.