Answer:
False
Explanation:
Radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium which therefore means that radiation doesn't require particles or matter.
A compound consists of two or more elements.
Answer:
Enzymes acts as catalysts to speed up chemical reactions.
Explanation:
Enzymes are otherwise known as biological catalysts which means that the help speed up reactions and break down large food molecules.
<span>The sequence is as follows:
c, d, a, b, f, g, e
The impulse starts at the SA node that has its own contraction rhythm (but can be faster or slower depending on other impulses or hormones). That impulse travels then through the atria and is slowed down by the atrioventricular septum except for a region in the right atrium called AV node where the impulse has continuity. The impulse travels then to the ventricles through the AV bundle. The impulse continues through bundle branches to other fibers: Purkinje fibers. These Purkinje fibers cause then a contraction that goes from the apex of the heart and rapidly through the ventricles.</span>
Answer:
A
Explanation:
a bacteria takes a longer time to spread throughout the body
