The answer is A. By gemmules
It is C beacuse you would produce large quantities of the neurotransmitter to see if it could be used as a potential medication.
I won’t be willing to eat this altered genetically crops because they are much harmful to humans. For example some links term genetically crops do gluten disorders that affect millions of Americans. Again there are multiple toxins which are from genetically altered crops which detect in real and fetal blood.
Negatives.
Genetically altered crops have got DNA and can be transferred to people who eat them.
Genetically altered crops can cause modified corn to rat tumours.
They cause human breast cancers induced by glyphosate via estrogen receptors.
In pigs genetically crops cause severe stomach inflammation and enlarged uteri.
A. Skeletal and muscular
the other three don’t have to do with this type of internal movement though as the abdominal region and internal organs don’t have to do with this, A is the only possible answer
To show the different levels of classification and divide among species, and different organisms on planet Earth. It also creates a universal "language" for scientists around the world when referring to organisms (cougar & puma are the same animals; different name)
Example: The American Alligator and the Chinese Alligator (look it up!) are in the same family and genus, but are not the same species.