Answer:
A. Compounds contain fixed ratios of different elements.
Explanation:
Water always has this 2:1 ratio of hydrogen to oxygen. Like water, all compounds consist of a fixed ratio of elements. It doesn't matter how much or how little of a compound there is. It always has the same composition.
Fibrin is an insoluble component of plasma that forms a meshwork of strands and is considered the structural basis of clot formation.
<h3>What is clot formation?</h3>
- Blood turns from a liquid to a gel during coagulation, which results in the formation of blood clots.
- Possible outcomes include haemostasis, which stops blood loss from a broken vessel, followed by repair.
- The activation, adhesion, and aggregation of platelets, as well as the deposition and maturation of fibrin, are all components of the coagulation process.
<h3>What is fibrin?</h3>
- A fibrous, non-globular protein called fibrin is necessary for blood to clot.
- It is created when fibrinogen undergoes polymerization due to the protease thrombin.
- A haemostatic plug or clot is formed over a wound site by platelets and polymerized fibrin.
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A macrophage is a large phagocytic cell that engulfs foreign particles and pathogens. So Macrophage.
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The genes involved in pattern formation and organization of body parts are called homeobox genes, which are a large family of similar genes.
The h<span>omeobox genes direct the formation of many body structures during early development of the embryo. </span>
The answer is the last choice, or ‘ GG and Gg’