Answer:
luminosity is the amount of electromagnetic power emitted per unit of time by a star
Answer:
Epinephrine
Explanation:
Epinephrine, which is also referred to as adrenaline, is the active sympathetic hormone that is secreted by the medulla of the adrenal glands into the bloodstream to initiate the body’s fight-or-flight response to stress or threat, causing increased blood pressure, sugar metabolism, heart rate, breathe rate, muscle strength as well as sweat. Pete's sighting of a bear as a threat stimulates the sympathetic nervous system to initiate the secretion of epinephrine which brings about the fight-or-flight response of the body to increase alertness of the body.
Answer:
Let me count a few of the ways…
- Plants do not take life of any kind to sustain their own lives.
- Plants harvest atmospheric carbon dioxide (a waste product), water and sunlight (both ubiquitous and freely available) to produce within themselves the food which nourishes them.
- Plants are born and die in the same place.
- Plants have yet to start a war, perpetrate a genocide, or kill members of their own species over disagreements about mere ideas.
- When plants die, they do not entertain silly notions of a Better Place, somewhere beyond the stars.