It allows them to be flattened on a microscopic slide, so that the chromosomes of individual cells can be observed easily.
This is true! Minerals were mined both on the surface as well as in mines and caverns underground.
If an egg cell were treated with EDTA, a chemical that binds calcium and magnesium ions, the fertilization envelope would not form.
An eggshell is a soft outer coat and a semipermeable membrane that is made up of calcium carbonate (CaCO3).
It is semi-permeable so air and water can not pass through it and the inside material remains intact.
A small shell or outermost coating called 'cuticle or bloom' prevents bacteria and other microorganisms to get inside the egg shell.
Moreover, egg yolk is a rich source of protein and other beneficial organic compounds.
Egg shell are used as chicken feed.
If you need to learn more about calcium and magnesium ions click here:
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Answer:
Sperm and egg have 23 the number of chromosomes as a body cell.
Hope this helps =)
Answer:
it is both good and bad because if snakes were there the rats will not destroy the fields and if their will much snakes then they will kill humans so it is both bad and good
I hope u may understand the answer