The changes in foot structure in a bird population over. Evolution leads to less complex organisms. And also the lock-and-key model.
Sublimation is a straight transition from solid to gas. This occurs in dry ice as it the ice, which is a solid state, does melt and have a liquid form. Therefore it is called dry ice as it doesn’t produce any liquid
In the adults, the growth rate slows with age. The healing mechanism of the different cells if damaged is different than that of the younger ones. If a cartilage is damage in the adults, the chondrocytes which are still surviving secrete more extracellular matrix in order to heal the damaged cartilage. The chondrocytes cells are present in the cartilage, and they function to maintain the cellular matrix of the cartilage.
DNA or deoxyribonucleic acid is the molecule in living organisms wherein the genetic code or <em>genes</em> is stored. The structural conformation of DNA in the nucleus of the cells is called <em>chromatin </em><em />and in cell division, chromatin is grouped into a certain number (46, in humans, for instance) called <em>chromosomes.
</em>DNA provides instructions for hereditary such that a part of DNA is transcribed into messenger RNA or mRNA for the genetic code to be transported outside the nucleus. The mRNA is then translated into polypeptides to form proteins that form specific functions in the human body.<em>
</em><em />
Answer: Option A
Explanation:
Rheumatic fever is a disease which affects the joints of the body. It also affects the skin and brain of the body.
Rheumatic fever symptoms is very similar like the common cold and fever. This fever can also occur after the throat infection which is caused due to group of bacteria known as Streptococcus.
It has the ability to cause sore throat, scarlet fever and infections in different parts of the body.
Rheumatic fever takes places if the strep throat and scarlet fever is not treated on time.
