The answer is, d. consists of circular DNA molecule . The circular DNA is found in bacterias and archeas (which are prokaryotic organisms). The picture shows bacterial chromosome.
Answer:
C
Explanation:
option c is correct
ingestion➡️ digestion➡️ absorption➡️ assimilation
Nicotine, once in the brain, will work specifically on nicotinic receptors in the brain. However, there is a common "addiction" pathway in the brain that pretty much all addictive substances go through.
Human activities such as pollution , like trash , or boat oil can effect the waters that house 100 of creature and as for nitrogen cycle things like forest burning and fossil fuel combustion can result in the increased deposition of nitrogen from atmospheric sources