In the slow block to polyspermy, sperm penetration releases an inflow of Ca2+, which in turn stimulates the cortical reaction.
<h3>What is cortical reaction?</h3>
- A medium known as the cortical response, which is started after fertilization, stops polyspermy, or the union of several sperm with one egg.
- The cortical response, which in numerous species serves as the top element of the slow block of polyspermy, gradationally forms a endless hedge to sperm entry in discrepancy to the rapid-fire block of polyspermy, which instantly but temporarily inhibits new sperm from fertilizing the egg.
- This barrier is made up of the egg's plasma membrane and cortical granules, specialized secretory vesicles found in the cortex (behind the plasma membrane) of the egg.
<h3>What follows the cortical response?</h3>
- Cortical granules (CG), a type of specific organelle in the egg, release their contents into the perivitelline region after sperm and egg fuse (cortical response), making the zona pellucida resistant to sperm adherence and penetration.
Learn more about cortical reaction here:
brainly.com/question/10231947
#SPJ4
Answer:
$200,000
Explanation:
Hawk Corporation purchased 10,000 shares at $50 per share of Diamond Corporation. The share were sold in 2019 at price of $70 per share to Diamond Corporation by Hawks Corporation. The net gain per share was $20 ($70 - $50)
The total gain from this investment : $20 per share * 10,000 shares
= $200,000 gain to Hawk Corporation from investment in Diamond Corporation.
Answer:
False
Explanation:
1) In Japan, this is rude to openly tip waiters, waitress, etc. So to avoid squabbles over tipping some restaurants ask politely if they may charge a fee of 15% on coupons. But it is not expected, nor it is mandatory to have this rule. It is humiliating, disgusting for somebody to ask or wait for tips.
Tips are not seen as an incentive to better work in Japan.
2) Tips in Europe is way too modest, than in the US. In some countries it is not even expected, but the tips range within 5% to 10% when it is necessary.
3) Kellyanne is wrong in both pieces of information