Answer:
A tolerance occurs when you need to use larger amounts of drugs or alcohol to achieve the same effects as when you started. Photo of Dr. Ashish Bhatt ... By the time a person realizes they have a problem, drugs or alcohol ... They may experience withdrawal symptoms if they stop using the drug altogether.
Explanation:
Your spinal cord is protected by the vertebral column (also known as the spinal column or backbone). The human spinal column is made up of 33 bones - 7 vertebrae in the cervical region, 12 in the thoracic region, 5 in the lumbar region, 5 in the sacral region and 4 in the coccygeal region.
Microorganisms that are found in the environment.
Answer:
Metabolic wastes or excretements are substances left over from metabolic processes (such as cellular respiration) which cannot be used by the organism (they are surplus or toxic), and must therefore be excreted.
This is what i found out i hope this is a good enough answer!! :P
I think that the answer is A .