The sympathetic and parasympathetic divisions of the ans have the same effect on most body organ systems. a. true b. false

The correct answer is false.

Parasympathetic nervous system (PNS) and sympathetic nervous system (SNS) are functionally different parts of ANS.

PNS controls homeostasis of the body. It is responsible for the body's "rest and digest" function which means that is active when the body is at rest. For example, it decreases the heart rate, relaxes muscles, constricts bronchial tubes, increases production of saliva, increases urinary output.

SNS, on the other hand, is involved in the body's fight-or-flight response, although it is active at a basic level to maintain homeostasis. SNS increases contraction and heart rate, dilates bronchial tubes, contract muscles, releases adrenaline.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.