Yes it does. This will affect negatively to your average score. At least I hope you have full credits for all the courses at school and there is no subject under 50. And this may make you second-term academic performance at school not so...good looking. But apart from those, there is nothing to worry!
Now its your job to negotiate with your teachers to redo exams or assignments and try doing better in the following months.
Answer: opinion about the topic and prove of evidence
Explanation:
The thesis statement presents your topic to the reader, provides your opinion on that topic and summarizes the argument you'll make in the paper by offering evidence for your opinion. A good thesis statement should capture all of these essential details in just one or two sentences.