Heya!
So, the radiation from a fire warms the bottom of a pot. Through conduction, the water inside the pot is warmed. Finally, through convection, the hot water rises and less hot water sinks, forming a motion similar to that of a circle.
Hope this helps!
There is really no change in cardiac output, there is increased heart rate and a decrease in systolic volume.Although, it is common that after donating blood, vasovagal syncope occurs.
This is basically that the body reacts to de lack of volume, the brain detects an stimulator effect on the vagus nerve, lowers the heart rate and the person feels dizzy or falls, without major consequences.
Your answer is b suggests the taxonomic
