The overall goal for using DAP is to support excellence in early childhood education through decision-making based on knowledge about children and child development principles combined with knowledge of effective early learning practices. I hope this helped sorry if It didnt :)
Iron is a nutrient best derived through diet.
the answer is A.) Heart rate
is a simple and practical method for monitoring the amount of work your heart is doing at any given time
DNA helps scientists to better classify organisms is because each organ has a specific kind of DNA. For an example, brains and hearts have many small types of RNA. So if a scientists see some RNA they know that its a heart or a brain.