Why does one strand of DNA need to be copied in short fragments?
- Because the two strands of a DNA molecule have complementary base pairs
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In a nutshell, a chemical change produces a new substance, while a physical change does not. A material may change shapes or forms while undergoing a physical change, but no chemical reactions occur and no new compounds are produced. And for an explanation on how to see the difference Look for an indication that a chemical change occurred. Chemical reactions release or absorb heat or other energy or may produce a gas, odor, color or sound. If you don't see any of these indications, a physical change likely occurred. Be aware a physical change may produce a dramatic change in the appearance of a substance. This doesn't mean a chemical reaction occurred.
Explanation:
Because technology and science has improved from the 1890's to the 2000's
There are different categories you can pick from example Predation
Answer:
b i hope it helps you !!!
Explanation:
