Answer;
C. high blood pressure
Explanation;
The ‘fight or flight’ is the body’s natural defense system which automatically triggers when there is a real or perceived threat.
The sympathetic nervous system is the part of the nervous system prepares the body to take action when a threat is perceived.
During fight or flight” the body responds by making the heart beat faster and constricting blood vessels to get more blood to the core of the body instead of the extremities.
The population of their prey most likely increased causing an imbalance in the food chain. This is true since there probably was not enough food to feed the rapidly increasing population.
The answer would be C. Horsetails
The answer is nitrogen-fixing bacteria.
<span>Plants
are not able to directly use atmospheric nitrogen. It must be converted into different
form through a nitrogen cycle. In the process of nitrogen
fixation, nitrogen fixing bacteria converts atmospheric nitrogen into
ammonium. In the process of assimilation, plants incorporate
ammonium into proteins.</span>
Some legumes have a symbiotic relationship with bacteria that
live in their root system. These bacteria are called Rhizobia and have
the ability of nitrogen-fixation.
