DNA is a double helix composed of nitrogenous bases, which form hydrogen bonds with each other. It also contains a deoxyribose sugar and phosphate backbone.
Answer:
Although the exact cause of most mental illnesses is not known, it is becoming clear through research that many of these conditions are caused by a combination of genetic, biological, psychological, and environmental factors -- not personal weakness or a character defect -- and recovery from a mental illness is not
Explanation:
Cuz they loved each other.
<span>The information that is needed to decide weather the lower dose of the vaccine was as effective at preventing the flu for people under the age of 65 is to know weather the patient was randomly assigned the lower dose or the full dose, if there was no randomization, it could mean there was bias which affects the conclusion. If there is randomization, it leads to the ability to discover causation.</span>
