Invertebrates are known as creatures that do not have backbones. Even though these creatures do not have backbones, they have been uniquely designed in order to survive. According to studies, most of these creatures are found in the sea and one of them is the Star Fish or also called as the Sea Star. Starfish's functions and ability to survive is not the same like other animals which make them unique in a different way. The starfish's body is hard and bony for protection purposes and they exist in a variety of colors for camouflage. Their essential functions in order to survive are as follows:
-The Ability to Regenerate: Starfishes have the ability to grow damaged and lost limbs or even their entire body as long as the center part is still present and intact. And this is their way of reproduction as well.
-Having Tube Feet: Its arms are covered with a suction-like tiny cups of tube feet. This unique design of the starfishes enables them to move and secure themselves, especially on rocks and ocean floors.
-Unique Feeding Ability: Sea Stars don't have mouths nor teeth to ingest food. Rather, these creatures have the ability to push open or turn their stomachs out and digest its food. After digestion, their stomachs retract back to their bodies.
-Vascular System: How starfishes survive does not rely on having hearts, brains and blood. Rather, they use the seawater. The seawater serves as the one the circulates inside the sea stars' bodies and this is when nutrients and oxygen are being transported and absorbed.
Answer: False
Explanation:
It depends on the genetic disorder. Genetic disorders have different modes of inheritance.
If the genetic disorder is autosomal recessive and the mother passes down the faulty gene while the father passes down the normal gene, the child will carry the faulty gene but it will not be expressed.
If the genetic disorder is autosomal dominant and the mother passes down the faulty gene while the father passes down a normal copy of the gene, the gene will be expressed since it is dominant.
If the mode of inheritance is sex-linked, if a mother passes down a faulty gene to her son he will express the faulty gene. The sex chromosomes of males are XY while females are XX
The Y chromosome does not express genetic material because of its size. Since the son will only have one X chromose, he will most likely express any gene passed down. Whereas the daughter will only carry the gene since she has another X to mask the faulty gene.
Vitamin B are required for the following :
- Protection of cell membranes against oxidative damage
- metabolism of amino acids.
<h3>Vitamin B </h3>
Vitamin B is very important for the proper functioning of the body cells in the body by helping with the metabolism process of converting food to energy. Vitamin B helps in the protection and maintenance of healthy skin and all kinds of cells and tissues in the human body.
Vitamin B helps in the rebuilding and creation of new blood cells in the body as well.
Hence we can conclude that Vitamin B are required for the following : Protection of cell membranes against oxidative damage, metabolism of amino acids.
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