The answer would be the ozone layer. <span>A layer of ozone in the upper atmosphere absorbs </span>UV radiation<span> and </span>prevents<span> most of it from </span>reaching<span> the </span>Earth<span>. ... This means that more </span>ultraviolet radiation<span> can pass through the atmosphere to the </span>Earth's<span> surface, particularly at the poles and nearby regions during </span>certain<span> times of the year.
I hope that this helped you! Good luck. :)</span>
Answer:
1. Evolution can be defined as the gradual development of an organism creating diversity.
2. A common misconception is that Homosapiens are descendants of Apes.
3. analogous structures are features of different species that are similar in function, but not necessarily in structure; such as bird wings and insect wings. homologous structures, however, is an organ or bone with similar underlying anatomical features found in different animals; such as the arms of primates.
4. vestigial structures are structures that have no apparent function and appear to be residual parts from a past ancestor, such as wings of flightless birds.
5. Embryology supports the theory that organisms have a common ancestor in accordance to the theory of evolution.
Explanation:
Platelets start a clotting reaction that intimately produces a clot composed of fibrin, is a form of Fibrinogen
Explanation:
Fibrinogen is blood plasma Protein which is converted into those protein fibrins in the clotting process. After removal of clot the fibrinogen free fluid is obtained and this fluid is known as blood serum. It shows strong flow birefringence. It is highly viscous.
By half saturation process and using the sodium chloride fibrinogen can be participated from the blood plasma. Through thrombin process clotting is initiated. With the help of electron micrographs, its molecules look like a rod whose length is 47.5 nanometre.
Integral proteins span the membrane and peripheral proteins reside on one side or the other.
