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.
Answer:the answers are a and d
Explanation:
I did the test sorry if wrong
Answer:
False; The levels of carbon dioxide have significantly increased since the industrial revolution.
C.) depend on the same resources
Competition is the rivalry between living things for territory, resources, goods, mates, etc. It is a symbiotic relationship that occurs in nature. Same or different members of species compete for resources, especially for limited natural resources.
The synaptic pruning during childhood results in a reduction in density of nerve cells, thus increasing the brain's efficiency.
<span>Synaptic pruning, which can include both axon and dendrite pruning, is the process of synapse elimination that occurs usually in early childhood. It is thought that this is the brain’s way of removing connections in the brain that are no longer needed and a way of maintaining more efficient brain function.</span>
