Answer:
Somatic hypermutation is a process in which point mutations build up in the antibody V-regions of both the heavy and light chains.
This process occurs at rates that are about 106-fold higher than the background mutation rates observed in other genes.
It allows B cells to mutate the genes that they use to produce antibodies. This then ensures the B cells to produce antibodies that are better able to bind to bacteria, viruses and other infections.
If I'm not mistaken, I believe the baby has a heart beat.
Answer:
The correct answer is statement A.
Explanation:
The procedure of purifying ocean water, that is, the saline water so that it can become suitable for drinking is termed as desalination. Almost 70 percent of the Earth is covered with water and of this only 3 percent is used for drinking purposes. On a huge scale, the process of desalination would require the boiling of water, which would eventually require an enormous amount of energy.
Reverse osmosis and electro-dialysis are the methods used for desalination. However, these procedures are very costly and cannot be performed on a huge level as it can affect the economy of various countries.
Answer:
all organisms need food for the energy required to live and grow.
Explanation:
Vinegar and baking soda have many uses in our society.
Both are obviously used for baking and cooking.
They also as more environmentally friendly, and sometimes more effective, alternatives for certain cleaning products.
A specific example, in a school science classroom setting, they are safe products for a basic lab demonstration for chemical reactions.
