Answer:
B) physiological
Explanation:
When we feel under pressure, our nervous system instructs the body to release stress hormones, such as adrenaline and cortisol, that produce <u>physiological changes</u> in order to help us cope with the threat or danger we see looming over us. It is what is called "stress response" or "fight or flight" reaction.
When we are stressed, the respiratory system suffers the effect immediately. It usually costs us more to breathe and we do it faster in an attempt to quickly bring oxygen-rich blood to the body.
Cardiovascular effects also occur. When the stress is acute (at that precise moment), the heart rate and blood pressure rise, but return to normal once this has passed. If acute stress is experienced repeatedly or if the stress becomes chronic (if it lasts for a long period of time), it can cause damage to the veins and arteries. <u>This increases the risk of hypertension, heart attacks or heart attacks</u>.
Answer:
improve resistance to pests, reduce the need for pesticides, and increase survival rates in adverse growing conditions.
Explanation:
In order to improve the quality of crops used to produce food, scientists can introduce new traits into plants. This is done by plant biotechnology, and manipulating plant genomes using advanced molecular techniques.
Examples of desirable traits needed for crops include the ability to tolerate a wider range of environments, improved resistance to pests, higher yields, better taste profiles, and larger fruit.
Cranial nerves, would be the answer.
