Answer:
C-able to relieve haemophilia
Explanation:
Factor V111 is a blood clotting factor;produced in the liver and body endothelial cells. It is usually exist as inactive form beacuse it is binded to glycoprotein (glycogen +protein) called Von Willebrand factor when released into the blood stream.
If absent in the gene of certain individuals due to mutations, it result in a sex-linked conndtion called haemophilia, where blood failed to clot when blood vessels are damaged leading to profuse bleeding/ hemorrhage.
Ideally in a normal individuals the inactive from of factor VIII are continuously circulated in inactive forms in the blood stream, until a damaged blood vessels occurs. At the injured site they are converted to active from called coagulating factor VIIIa,,by separation from Willebrand factor, react with coagulating factor IX to initiate clotting. The factor VIII is a co- factor for factor IX, and together with calcium ion,phospholipids converts t to factor IXa,
The latter converts prothrombin to thrombin. The thrombin convert fibrinogen to fibrin, which form a stable fibrin clot at the injured site to arrest bleeding.<u> </u><u>The cascade of events is lacking individual without factor VIII. Therefore bleeding occurs.
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Consequently, symptoms of hemophilia can be relieved by a functional factor VIII, because it will prevent the deficiency in factor VIII in the affected individuals by acting as co-factors for the conversion of factor IX to IXa, to initiate clotting.
Answer:
We have rocks from the Moon (brought back), meteorites, and rocks that we know came from Mars. We can then use radioactive age dating in order to date the ages of the surfaces (when the rocks first formed, i.e. when the lava cooled and crystallized). We also have meteorites from asteroids and can date them, too.
Explanation:
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Answer: Mycorrhiza
Explanation: Mycorrhiza is a symbiotic relationship between a plant and a fungi. Nearly 80 percent of all plants with root systems participate in this mutualistic relationship. In mycorrhiza, the fungus forms a haustoria that penetrates the cell walls of the plant's roots. The fungus absorbs all the nutrients from the roots as they are transported to the plant. In return, the fungus gives the plant necessary chemicals and minerals that it cannot properly reach on its own.
1) A
2) B
3) C
4) D
5) E
6) F
7) G
8) H
The answers are already in the picture.
Gymnosperms are no longer restricted to moist environments, as are ferns and mosses because they have evolved to produce non-flagellated pollens that do not require water or moisture to reach the egg whereas ferns and mosses have flagellated sperm that needs moisture to swim towards the egg.
Another major evolutionary adaption in gymnosperms is the production of seeds instead of spores since seeds contain their own nutrition in the form of endosperm, seeds can travel large distances through wind or animals and can germinate when they find suitable conditions. Seeds can remain dormant for several years whereas spores have a shorter lifespan.
To learn more about endosperm here
brainly.com/question/87065
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