Bacteria exposed to DNA can incorporate the DNA and change phenotype.
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Answer:
Although you normally hear about trying to reduce or eliminate friction, it actually has some important uses.
Since friction is a resistance force that slows down or prevents motion, it is necessary in many applications where you might want to hold items or do things and prevent slipping or sliding. In those cases, there is an advantage of having friction.
Quite often uses of frction can be seen from how things would be without friction. Without friction, you would not be able to walk, drive a car, or hold objects. Pens and pencils would not work.
Explanation:
It’s Wolf biologists are a specific type of wildlife biologist - a scientist employed to observe and study animal behaviors. In this case, their research and study are limited to wolves. They spend time in the field observing the wildlife and their interactions with each other, prey animals and the ecology.