chromtids are visible during interphase but for chromosomes its prophase
Answer:
Prokaryotic cells
Explanation:
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The plug is composed of platelets and special plasma proteins called fibrin. The platelets pug is enmeshed in a network of insoluble fibrin molecules.
The aggregation of platelets and formation of fibrin both require the enzyme called thrombin. The clotting process also requires calcium ions, and about a dozen other protein clotting factors found in plasma.
When blood vessels are cut or damaged, the loss of blood has to be stopped before shock and possible death occur. This is achieved by solidification of blood, a process called coagulation or clotting.
C) water is needed for the photosynthesis to occur
CO2 + H2O --> glucose + O2
the atoms of C, H, and O must combine to form glucose
Answer: Aids in preventing polyspermy.
Explanation:
The polyspermy is a condition in which more than one sperm penetrate the nucleus of the mother egg. This process results in the contribution of extra centriole to the egg. The presence of the extra centriole the first division is affected and chromosomal partitioning hampers.
In the given situation, the tiny channel of micropyle can accept only one sperm to fuse with the egg membrane thus this will aid in preventing the polyspermy.