The answer is muscles and glands.
Neurotransmitters are endogenous chemicals that enable neurotransmission. It is a type of chemical messenger which transmits signals across a chemical synapse, such as a neuromuscular junction, from one neuron to another "target" neuron, muscle cell, or gland cell.
I wrote a paper about this not too long ago! I don’t know a lot about GMO’s, but I can answer your questions about genetic engineering in humans.
I feel that genetic engineering has a lot of promise, especially with eradicating genetic diseases, but it is still very new and research needs to be done with extreme caution. If gene editing technology was allowed to be used in more than just extreme circumstances, there would be a lot of room for misuse, things we can only imagine now, like changing someone’s physical features (eye color, skin color, etc). This is just one issue that could lead to less diversity and discrimination of a whole new kind, and just kind of spiral from there. There have been people who have died during experimental genetic engineering, I read a study where it was used to cure a handful of children of a genetic disorder, but then the tampering led to about half of them being diagnosed with a type of cancer that came directly from the gene editing, and at least one passed away. All this to say, genetic engineering can be a good thing, but there do need to be limits and further research should tread very lightly.
Kind of a long answer, sorry, but I hope this helps!
Carrot i would say is the answer.
If the cells did not differentiate, 1 virus could kill an entire species.
Answer:
OB) An elephant in the savannah develops without the ability to hear. A salamander living in a cave is born without, eyesight or fully developed eyes.
Explanation:
Adaptations are gradual modifications and changes in the physical characteristics or behavior of an organism, so that it could facilitate the survival of the organism in that particular environment.
In case of elephant without ability to hear specially in the regions of Savannah where there is vast grasslands with scanty vegetation and animals, then the elephant can't hear any sound of danger like approaching calamities, also it could hear the call of other elephants, in case if the elephant becomes segregated.
In salamander, low eyesight or low vision will further add to the misery, as there is already darkness in the cave. It could fall prey to any predator or it could not be able to feed on consumable organisms as it could see properly.