Answer:
Excitement
Explanation:
Sympathetic nervous system is a type of autonomic nervous system that acts as an emergency system of the body.
Sympathetic nervous system prepares the body during fight and flight response. The energy is put out in this system and protects the body from the injury. During excitement the heart speeds up, blood pressure increases and more energy is available to the body. Hence, excitement is the characteristic of sympathetic division of nervous system.
Thus, the correct answer is option (b).
Other functions of the small intestine include absorption of nutrients and water, after they have passed through the stomach, using special structures called villi.
The correct answer is: B) binding to their substrate
The catalytic mechanism of an enzyme starts when the substrate binds to its active site (specific region of an enzyme). There is a theory (lock and key) that explains the mechanism of this binding: the lock is the enzyme and the key is the substrate and only if they fit the enzyme will work. The binding of the substrate to the enzyme causes conformational changes of the enzyme, and as a result, products are formed. The products are then released from the surface of tat enzyme. The enzyme is regenerated for another reaction cycle.
D legislation was passed to regulate pollution
