By nerve cells the heart has neurons and they work based on electrical potential.
Answer:
births - deaths = growth
Explanation:
(births - deaths) + (immigrants - emmigrants) is what you would normally use to calculate the growth of a population, but because they can't move, you can cut out the immigrant and emmigrant part of the equation.
This climate is warm.
The animals in the tundra are strong to live in such an environment.
I don't know what the rest of that stuff is sorry.
They are useful because of the way they process and digest food. They apply their enzymes externally and then absorb smaller mollecules. This process releases things like CO2 or creates alcohols, and this has historically been used in making drinks like beer or foods like bread and cheese.
This is based on borderline personality disorder which is low levels of activity in anterior cingulate cortex is associated with hoarding behaviors, suicidal behavior that is 7.5% suicide over 20 years old, self-injury 2/3 ; 3/4 stabilize in 10 to 15 years, co-morbid PTSD or mood disorder, at risk for substance abuse and eating disorders, schizotypal personality disorder, might be related to dissociation identity disorder, genes account for 60% variance in developing BPD, lower serotonin function, increased activation of amygdala and disturbed connectivity b/w prefrontal cortex and the amygdala.
