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.
The answer is D matter and energy shown in the question can change forms and is transferred to other locations for organisms to be used as building blocks for others.<span />
I would say its between A and D, Hope it helps.
Explanation:
a mature ovule of a plant
bcz ovule forms seed and ovary forms fruit
