What does it mean when an emission line of helium from a galaxy is shifted toward red A. The galaxy contains a small percent of Hydrogen

B. The Galaxy is moving toward the viewer

C. The galaxy is moving away from the viewer

D. The galaxy contains a large percent of hydrogen

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme

1. a tropical dry forest carries out more rapid nutrient cycling

thinking it would be physical characteristics

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.