Answer:
C
Explanation:
Opportunist are organisms that are found naturally in other living organism and only cause disease in the organism when its immune system is compromised for example HIV virus lowers immune system strength by reducing the amount of the CD4⁺ cells available thereby exposing the organism to attack from opportunistic organism such <em>Staphylococcus aureus. </em>The opinion that supports the statement is S.aureus is found in the nasal passages of many healthy people.
Answer:
C. Helicase
Explanation:
Helicases are the enzymes involved in unzipping of the double stranded DNA molecule at beginning of DNA replication. They do so by binding at DNA sequences called origins on DNA molecule then they break the hydrogen bonds between complementary base pairs causing the two strands of DNA molecule to unzip.
One example would be freezing water in cracks of a sandstone sidewalk
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
