The beginnings of a brain first become apparent around four weeks after conception when the neural plate folds to form the neural tube
Answer:
Ozone
Explanation:
In the stratosphere, ozone is created primarily by ultraviolet radiation. When high-energy ultraviolet rays strike ordinary oxygen molecules (O2), they split the molecule into two single oxygen atoms, known as atomic oxygen.
Answer:The helix structure Of DNA helps prevent it from been expose and also the sugar and phoshate group that are important components of nucleotides forms a backbone on the helix structure or the polynucleotide this back bone is hydrophobic i.e water loving hence wouldn't allow for penetration for water.
2. Hydrogen bond is formed between this bases to keep them in place.
Explanation:
Protein builds muscle.
So it's gonna be the last one.
Answer:
Explanation:
drugs can cause the brain to malfunction a lot of times and you can feel dizzy and get constant symptoms also if you take a drug without permission you can die from it here are some facts about How do drug uses affect the brain
