Answer:
Sperm-egg interaction
Explanation:
The formation of fertilization envelope is well-studied on the model system- sea urchin. It has been shown that, the fertilization envelope is formed after the initial sperm-egg interaction from the egg surface vitelline envelope and the paracrystalline protein fraction which is derived from cortical granules. Secretion from cortical granules, prevents polyspermy.
Answer:
The name of the monomer in the polymer polythene is:
Explanation:
Ethylene Or Ethene
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One reason is that the two kinds of birds live in two different types of environments and also the sharp billed ground finch does not just it plant matter. It feast on the blood of bigger sea birds. This is an adaptation that it has so it does not have to eat plant matter and compete for food
Answer:
Eons, Eras, Periods, Epochs.
Explanation:
Answer:
Random mating
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There are five basic Hardy-Weinberg assumptions: no mutation, random mating, no gene flow, infinite population size, and no selection. If the assumptions are not met for a gene, the population may evolve for that gene (the gene's allele frequencies may change).
