Structure of Sun:
The sun has six layers.
Three layers named as
• Corona
• Chromosphere
• Photosphere
These layers comprise the sun’s atmosphere or outer layer.
The other three layers namely
• Connective zone
• Radiative zone
• Core
Comprises the inner layer or part of sun that are not seen.
Structure of earth:
The structure of earth is divided into layers and these layers are both physically and chemically different.
The earth has an outer solid layer called crust, a viscous layer called the mantel, a liquid layer that is outer layer called outer core and solid center called inner core.
A sperm cell's structure is very specialized. Its flagellum is used for locomotive function, to rapidly swim directly through the egg cell. While the cytoplasm, it contains organelles, such as the Mitochondria, wherein respiration occurs, to release the energy needed for the sperm's journey towards the egg cell. Sperm cells, contain special enzymes known as acrosomes, this special enzymes allows the sperm to break through the cell membrane of the egg.
In this cross the trait of long tail fins is associated with the “Y” chromosome of the male.
Thus the alleles of the male are represented by XY” where X chromosome has no trait of long tails find
And the allels of the female are represented by XX, as they do not have long tail fins.
When these two are crossed , the following punnet square is produced
X Y”
X X X X Y”
X X X X Y”
The XX is the female while the XY” is the male offspring.
If a decaying baby teeth is untreated properly without an expert's care, it may lead to permanent and serious problems in the developing permanent teeth. Which why it is advisable for parent to bring their children to their family dentist for regular check-ups to diagnose any present problems in the teeth and may be fixed right away.
