L-dopa is effective against Parkinson's, but its enantiomer D-dopa is not. An enantiomers drug may not be equally effective. The enantiomer, in chemistry, is one of two stereoisomers that are mirror images of each other that are non-superposable, much as one's left and right hands are the same except for being reversed along one axis. It is also known as an optical isomer.
Answer:
Patented products
Explanation:
A patent is an exclusive right given to the owner of a product or a work of art that restricts other person's from using using, selling or distributing the work over a period of time.
It is often gotten to help protect the originator of a product or piece of artwork right.
Patented products are therefore products for which these exclusive rights are gotten. It is an environmental concern that affects society because most of the items listed in the question used in industry and manufacturing processes hardly have patents.
Answer:
1) Due to the low dam levels, water limits were enforced on customers in many Southern African countries. The drought has also resulted in the death of livestock and low crop yields as a result of insufficient or non – existent rainfall, irrigation water source.
4) I would visit the Nile River because it is the only river that flows north instead of south and it is the longest river in the world. I would also visit the Sahara Desert because it is the largest hot desert in the world and is home to beautiful animals such as antelopes and gazelles. Both feature are beautiful, unique and has an important role in shaping the society of countries in Africa.
5) In todays modern-day the invention that would have a similar influence would be the alphabet because the people in the Song dynasty used this as their way for writing down Chinese language and since in todays modern world we have the alphabet so it all works.
6) The mining of Gold and Planting of cotton does have a positive yet negative impact. The mining of gold and the planting of cotton makes the country wealthier due to the high demand in the international market while on the other hand, mining of Gold and the plantation of cotton needs a clean piece of land so that the vegetation must be removed around the mining site as well as the cotton crop which destroys the habitat of organisms and effects the ecosystem.
Explanation:
I just know this, also good luck!
Answer: B. bike boxes.
Answer choices are:
A. sharrows.
B. bike boxes.
C. bike lanes.
D .all of the above
<span>All of the above are designated places for the exclusive use of bicycles. A sharrow is a street marking installed at locations to indicate where people should preferably cycle while a bike lane is just a portion of the roadway for the exclusive use of the bicyclists. A bike box is <span>a special intersection that allows bicyclists ahead of motor vehicle traffic make it safer for them to turn or cross. </span></span>
