<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.
The answer is: Freckles on the skin
Binomial nomenclature, also called binominal nomenclature<span> or binary </span>nomenclature<span>, is a formal system of naming species of living things by giving each a </span>name<span> composed of two parts, both of which </span>use Latin grammatical<span> forms, although they can be based on words from other languages </span>
Answer:
The building blocks of proteins are amino acids, which are small organic molecules that consist of an alpha central carbon atom linked to an amino group, a carboxyl group, a hydrogen atom, and a variable component called a side chain
Explanation:
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