The correct answer is mutualism
Explanation: Mutualism is an ecological relationship between individuals of different species in which everyone involved benefits. It may be mandatory or not.
Answer:
The cochlea contains of tiny stereocilia, or tiny hair cells.
Explanation:
By definition, cochlea is a snail-shaped portion of the inner ear, that belongs to the auditory system. Cochlea receives the vibrating sounds and it causes <em>stereocilia</em> (bundle of tiny hairs, visible in that shape only under the microscope) to move. Then, those vibrations are converted into nerve impulses, and further sent to brain so the received nerves can be processed.
That hearing is an extraordinary process, says the fact that we have over 15000 tiny hair cells! When sounds are too loud for too long, these bundles of <em>stereocilia</em> can be damaged. The damaged hair cells can't respond to sound, which causes noise-induced hearing loss. Since hair cells can’t be repaired or even replaced in humans, hearing loss is often permanent.
Answer:
Neurotransmitters are chemical substances whose objective is to produce proper communication between neurons. For this to take place, there must be an adequate amount of dopamine and norepinephrine. In children with attention deficit hyperactivity disorder, the production of these two neurotransmitters is irregular; on the other hand, low levels of serotonin are related to the appearance and maintenance of obsessive-compulsive disorder.
Explanation:
Attention deficit hyperactivity disorder is one of the disorders linked to insufficient production of the neurotransmitters dopamine and norepinephrine. This deficit of dopamine and norepinephrine causes problems in the regulatory circuits of various areas of the brain: the prefrontal cortex, the corpus callosum, and the basal ganglia. It is characterized by a difficulty in maintaining voluntary attention in the face of activities; on the other hand, low levels of serotonin are related to the appearance and maintenance of obsessive-compulsive disorder. Serotonin is a neurotransmitter involved in various cognitive processes: modulation of mood, learning, memory, physiological responses, etc. Low levels of serotonin produce unusual responses, overexciting activation in the orbitofrontal cortex, affecting thought and behavior.
Answer:
The line item veto Act of 1996
Explanation:
