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:
brainly.com/question/14058417
#SPJ4
<span>The question says,'...........convert ammonium into nitrates whilw .........converts nitrates into nitrogen gas. The correct option is A. Nitrification is a two stage process by which ammonia or ammonium is biologically oxidised to nitrate while dentrification is the biological oxidation of nitrate to nitrogen gas by dentrifying bacteria.</span>
Answer: Can result in a new variety of gene combinations in the species.
Explanation:
Answer:
The answers have been explained below in separate paragraphs -
Explanation:
Yes, after stimulation, the muscle will generate force but the reaction of the muscle will not be visible because the force generated will be of low intensity and passive in nature and the load pulling the muscle downward will not allow it to move under the influence of this force.
After removing the platform the muscle will change length if the weight is still connected to the muscle. The connected weight will pull the muscle downward and as a result the length of the muscle will be increased. This increase in length will not be due to muscle contraction, it will only be due to the force pulling downward.
This type of contraction is termed as isometric contraction in which even though the muscle is activated but it is not allowed to contract or relax due to the presence of an external force.
They established a territorial government for new mexico from the september 9