Answer;
B. It arouses the body and expends energy.
Explanation;
-The autonomic nervous system controls the insides of the body: the viscera or gut. It carries information about the inside of the body to the CNS and controls the action of internal organs. The autonomic nervous system has two divisions: the sympathetic division and the parasympathetic division.
-The sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. The parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.
1.well mutations can cause cancers and alot of diseases however in some cases mutations can be good. for example people in Africa are not affected by malaria
2. the deletion or addition basically change of order in the genetic code. for example A goes with T. DNA can be damaged if A is paired with C
Climate change threatens the air you breathe
Answer: Endoplasmic recticulum
Explanation: Endoplasmic reticulum serves as channels for the transport of materials between various regions of the cytoplasm or between the cytoplasm and the nucleus.
Oxygen is absorbed by red blood cells in the lungs.