Answer:
it provides energy for chemical reactions
Explanation:
enzymes are biological catalysts which speeds up a chemical reaction without changing itself.
as like catalysts providing activation energy for the reaction enzymes provides energy for a reaction
You never can know the exact value of a physical or chemical dimension because several reasons: all the instruments have a certain sensibility (sensibility is the smallest variation of the dimension that the instrument can measure) that cannot be overcame.
Breathing, heart beating, blinking
Answer:
The star is traveling <em>towards</em> the earth.
Explanation:
Space experts arrange stars into groups as per their shading and the composition. This star arrangement framework goes this way: O, B, A, F, G, K, M in which O star is blue and is very hot and <em>M stars are red</em> and the coolest and most basic stars in the Universe.
From the color of the star we can infer that as the star is appearing red it is inferred that the star is an M star and it is traveling towards the earth.
