The branch of science that is concerned with the study of the nervous system, especially the brain, is called:

neuroscience

Explanation:

Irritability in animals is brought about by the nervous system. the nervous system consists of peripheral nerves and a ventral nerve cord. The nerve fibres are concentrated to form cerebral ganglia acting as a brain for effective co-ordination.

The central nervous system is composed of the brain, spinal cord and their associated nerves. The branch of biology that deals with the nervous system is called neuroscience.

post-impressionism is a predominantly french art movement that developed roughly between 1886 and 1905, from the last impressionist exhibition to the birth of fauvism. post-impressionism emerged as a reaction against impressionists' concern for the naturalistic depiction of light and colour.

explanation:

hi~~

i would say that hybridization occurs frequently in nature, because there are many types of hybrids that have occurred naturally, such as the mule (male donkey + female horse)