Brain death is characterized by the loss of function of the whole brain, also including the brain stem itself. Brain death is caused by many factors, it may be caused by severe head injuries, brain tumors or even by aneurysm.
The correct answer for this question would be option B. Greenhouse gases are needed for the survival of life on Earth because without greenhouse gases, Earth would be too cold for life to exist. Hope this answers the question. Have a nice day.
C. Enzymes increase the rate of the chemical reactions carried out during metabolism.
They are connected by tendons
Answer:
the action or process of adapting or being adapted.
a change or the process of change by which an organism or species becomes better suited to its environment