<span>If an object is accelerating then the forces applied on them are unbalanced, balance forces will cause the object to remain stationary or move at a constant velocity.</span>
<span>Unidirectional flow in the heart is ensured because the heart contains valves that prevent backflow.
These valves keep the flow of the heart going in one direction (hence the name "unidirectional").</span>
Answer:
1. C
2.C
Explanation:
I've seen these questions before on a test from my school
That is binary fission, 'cause in this process, chromosome number doubles to it's original value whereas in meiosis it gets halved.
In short, Your Answer would be Option D
Hope this helps!
