Hemostasis is the process by which bleeding is stopped, that is, a process by which the blood is kept back in the broken blood vessel. It is the first stage in the wound healing process.
During hemostasis, three rapid steps occur simultaneously. In the first step, the blood vessel constrict in order to reduce the quantity of blood that is flowing out, secondly, platelets stick together in order to form a temporary seal which covers the break and thirdly blood clottings formed by adding fibrin threads which serves as molecular glue on the surface of the wound.
Answer:
This is how cells gene regulation occur.
Explanation:
Regulation of gene expression is very very important thing to maintain the normal levels of all body proteins according to our body"s requirement.
During positive gene regulation enzymes of various metabolic pathways of the target cell is being activated,thus supplying the cellular need of various metabolites and proteins.
During negative regulation various enzymes are turned off thus blocking the formation of metabolites or proteins not required by the cell.
<span>Deoxyribose is the same as ribose, except that the former has one more OH. DNAand RNA is the sugar, with 2-deoxyribose being replaced by the alternative pentosesugar ribose in RNA. The four bases found in DNA are adenine (abbreviated A), cytosine (C), guanine (G) and thymine (T).</span>
Answer:
The classification scheme is ancestor.
Explanation:
In cladistic approach is a type of classification in which organisms are classified on the basis of their common ancestor. Those organisms are placed in one group which have common ancestor and share same characteristics or which are evolved from a common ancestor. With the passage of time changes occurs within the body of organisms so these organisms are different from one another in physical structure but have a common ancestor.
The survival of every ecosystem is dependent on the producers<span>. Without </span>producer s<span>capturing the energy from the sun and turning it into glucose, an ecosystem could not exist. On </span>land,plants<span> are the dominant </span>producers<span>. Phytoplankton, tiny photosynthetic organisms, are </span><span>the most common producers</span>
