Question 1 What is the mass number of a Cl atom which has 17 protons and 18 neutrons? a)18
b)17
c)35

Describe the primary and secondary immune response in terms of speed and number of antibodies produced?

How does deforestation affect the water cycle? a. it increases the amount of runoff b.it increases the amount of percolation c. it increases the amount of transpiration d. it increases the amount of precipitationa it increases the amount of runoff

What condition is kept close to its set point in osmoregulation? a. body temperature b.platelet count c.blood glucose level d.water balance