Two rows of transition metals are placed at the bottom of the periodic table to save space. elements in the first row are called what

What is the most appropriate method of gaining weight (muscle mass)

With regard to enzymes, key is to lock as a) substrate is to activation energy eliminate b) product is to substrate. c) enzyme is to active site. d) substrate is to active site.

What is it called when lava when it erupts from the surface through volcanoes.