There are often not more than one or two independent variables tested in an experiment, otherwise it is difficult to determine the influence of each upon the final results. There may be several dependent variables, because manipulating the independent variable can influence many different things.
Topiramate
Topiramate is the drug which might be responsible for this malformation.
Topiramate is an anticonvulsant drug which is taken alone or with other drugs to prevent and control epilepsy. Topiramate is produced in four forms and are all taken by mouth. Topiramate has many side effects which include birth defects if is taken during pregnancy, osteoporosis, vision loss, nervousness and upper respiratory tract infection.
Answer:
The correct answer is option 3. a nucleus.
Explanation:
The first genetic material present in the early organisms were RNA which was present in the microscopic organisms back then 3.5 billion years ago which means it is normal to have RNA in such microfossils chemical analysis.
Since, the nucleus was not present in early life forms of prokaryotes like bacteria. so, it is unusual to find nucleus in the fossils of stromatolite rocks.
Thus, option III is the correct answer.
In a study of the raw materials used for photosynthesis, the two molecules that would be studied are carbon dioxide and water. This is because they are the reactants of the process. Without these molecules the process of photosynthesis cannot happen.
