Answer:
<em>The velocity can change by changing the direction</em>
Explanation:
If the direction changes, then the velocity changes even though the speed is constant. Hope this helps!
<span>The formation of the fertilization envelope (slow-block to polyspermy) requires an increase in the availability of </span>calcium ions.
Slow-block to polyspermy is also called cortical reaction. In this reaction, the sperm will be permanently blocked by cortical granules. The release of calcium ion will trigger this reaction.
Everything we have today is because of the industrial revolution
The number of protons in a neutral atom equals the number of ELECTRONS.
