Chromosomes are a DNA molecule, that cannot be seen underneath a microscope. However, the DNA in chromosomes become pushed together during cell division, which then allows scientists to see its material under a microscope.
The answer needed to complete the statement above is the External Urethral Sphincter. It a skeletal muscle, in contrary to the internal urethral sphincter, whose location is at the urogenital diaphragm. Its function is the voluntary control of urine in the bladder.
Explanation:
<h2>1.EARTHQUAKES HAVE TWO MAJOR EFFECTS ON THE EARTH'S SURFACE</h2><h2>2.P-WAVES. S-WAVES. SURFACE WAVES.</h2><h2>3.THE FOCUS IS THE POINT WITHIN THE EARTH WHERE SEISMIC WAVES ORIGINATE IT IS CENTERED ON THE PART OF THE FAULT THAT HAS THE GREATEST MOVEMENT.THE EPICENTER IS ON THE EARTHS SURFACE DIRECTLY ABOVR THE FOCUS.</h2><h2>4.NORMAL(EXTENSIONAL)</h2><h2>REVERSE OR THRUST(COMPRESSIONAL)</h2><h2>STRIKE - SLIP(SHEARING).</h2>
<h3>HOPE IT HELPS.</h3>
I think b, because it’s the time that the isotope takes to fall to half of its original value
