Homeostasis is the ability of an organism to stabilise its internal body metabolism in response to changes in the external environment. The ability to carry out homeostasis provides an organism a lot of freedom from the dependence on the external environment. For example, reptiles are cold blooded animals. They require the heat of the sun for body metabolism. But in the absence of heat or in case of harsh winters, the reptiles will not be able to adjust to the temperature and as a result perish. Mammals are warm-blooded animals, being able to regulate their internal body temperature as and when necessary. Winters will affect the warm-blooded animals less because their body will increase in metabolism in response to cold temperatures to raise the internal body temperature. This is possible only through homeostasis.
Answer:
RFLP technique can be used to develop useful polymorphic molecular markers for mapping QTLs.
Explanation:
A quantitative trait locus (QTL) is a fragment of DNA whose variation is associated with phenotypic traits controlled by numerous genes (i.e., quantitative traits) such as, for example, height, weight, etc. Restriction fragment length polymorphism (RFLP) is a technique useful to detect DNA polymorphisms (i.e., genetic variation) among samples. In RFLP, the genome is digested using restriction enzymes and these restriction fragments are subsequently separated by electrophoresis depending on their size, thereby producing differential gel bands among samples. These polymorphisms can be used to map QTLs and develop linkage maps, which is known as RFLP mapping.
Sorry to reply so late but I hope this helps. Well the evolution of species would not happen if they did not reproduce. Species reproduce and then they expand and can evolve.<span />
Question 11 :........ultraviolet has high frequency.
..........ultraviolet has higher radiant energy
question22 :......the instruments can better view the universe without the disruction of electromagnetic rays emmited by the earth.
......the instrument can get closer to the object they are observing at the extreme end of universe.
And question 14 : Light speed up as it passes from air to water causing an interruptionin the light ray that create the image.
Light bends as it passes at an angle from one medium into another,causing the image to appear bent.
(it's not 22 question it's 12 question sorry).
I only know that.