By tar, I think you mean nicotine. (I Hope). It affects the nerve signals that regulate breathing.
It would also be considered, the label of 14C.
Acetyl CoA is the process part of the cellular respiration where formation of Coenzyme A is synthesized. Thank you for your question. Please don't hesitate to ask in Brainly your queries.
Answer:
The correct answer would be crawling and sucking reflex.
Crawling reflex is the reflex by which baby make crawling movements when placed on abdomen.
It helps in the baby to find his or her mother and food.
Sucking reflex helps the baby to eat food. Through this reflex, the baby starts sucking when area around the mouth is touched. For example, when the nipple is placed inside the mouth of the baby, he or she starts sucking.
I believe it's B. synthesizing new DNA from RNA sequences.
