When a cell is not dividing, the DNA is loosely spread throughout the nucleus in a threadlike form called chromatin.
The answer is b the Development of circulatory shock
Answer: I believe it is c.
Explanation: It allows you to see the differences between before and after.
Substitution, because in the second one, the fifth letter is a G while it was a C in the first one.
The Ordovician is best known for its diverse marine invertebrates, including graptolites, trilobites, brachiopods, and the conodonts (early vertebrates). A typical marine community consisted of these animals, plus red and green algae, primitive fish, cephalopods, corals, crinoids, and gastropods.