They all have a nucleus and membrane-bound organelles.
They can all be multi cellular.
(That's all I can think of :/ sorry for the lack of characteristics)
<span>The correct option is this: THE HEART BEGINS BEATING.
A fertilized egg takes about 40 weeks to reach full maturity. At week 5, the developing fetus resemble a tadpole; at this stage, the circulatory system has begin to form and the tiny heart has started beating and the baby is the size of a sesame seed. By week 6, the heart beat of the baby can fully be detected through scan.</span>
Lines of longitude and latitude help people in finding locations by making the location easier with accuracy on a globe. For example if you had 90 degrees longitude west and 40 degrees latitude east. The lines in which those two intersect is the location. This makes locating very easy and this is what pilots use to travel to different locations.
The S phase is when a Cell's DNA is copied. This is otherwise known as mid-interphase.
hope this helps!!
