What is the name for the “top” number in blood pressure? ?

An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic