The human brain and spinal cord develop from which structures? 1.nerve cord

2.notochord

3.pharyngeal pouch

4.tail

Please help me!

Which statement is best described as a atom

Place the elements below in order of decreasing ionization energy. aluminum(al) chlorine(cl) magnesium (mg) sulfur(s)

What volume of a 0.0606 m solution of strontium bromide is needed to obtain 0.340 mol of the compound? question 42 options: a)5.61 l b) 3.4 l c) 600 ml d) 1 l e) 178 ml