Answer:A radical (often, but unnecessarily called a free radical) is an atom or group of atoms that have one or more unpaired electrons. ... A prominent feature of radicals is that they have extremely high chemical reactivity, which explains not only their normal biological activities, but how they inflict damage on cells.
Explanation:CAN I GET BRAINLIEST PLZZZZZZZZZZZ
Answer:
protein is the right answer
Answer:
Petrified fossils
Explanation:
Petrified fossils is the method of fossilization that preserves the most detail of an organism. Petrified fossils are formed when minerals replace all or some part of once-living matter.
Answer:
The second neck vertebra evolved to allow rotation of the neck for moving the head left and right. As tetrapod species continued to evolve on land, adaptations included seven or more vertebrae, allowing increasing neck mobility.
Explanation:
