Answer:
peristalsis.
Explanation:
When the food enters the esophagus, it is in the form of a bolus. During this esophageal stage of swallowing, there are rhythmic contractions and relaxation of the circular and longitudinal layers of the muscularis of the GI tract. It is called peristalsis. This pushes the bolus downwards. Peristalsis in the esophagus is controlled by the medulla oblongata.
As the food enters the stomach, waves of peristalsis pass over the stomach every 15 to 25 seconds. The peristaltic waves in the stomach start at its body and become more intense as they reach the antrum. It moves gastric contents from the body of the stomach down into the antrum, a process known as propulsion.
<span> In unmyelinated axons, the action potential (nerve impulse) travels continuously along the axons and thus, the conduction of nerve impulse is slower. The loss of myelin sheath is called demyelination and is the hallmark of some neurodegenerative autoimmune diseases like multiple sclerosis or acute disseminated encephalomyelitis. Demyelination interrupts signals between the brain and other parts of the body and it includes symptoms like loss of vision/hearing,</span> <span>blurriness in the central visual field, double vision, weakness..</span>
Answer: caldera
Explanation: shore length is not a well defined measure. crater lake is a crater lake in south central Oregon in the western united states. the lake only partly fills a nearly 2,148-foot deep caldera that was formed around 7,700 years ago by collapse of the volcano mount Mazama.
When DNA was discovered, Watson and Crick saw that the strands of the double helix are lined up in the opposite direction of each other. This type of orientation is called the antiparallel orientation.
The antiparallel orientation is a type of orientation showing two polymers present side by side but running in the opposite direction. The best example of this is the deoxyribo nucleic acid (DNA). DNA molecule is made up of a pair of polynucleotide strands which are antiparallel. The antiparallel orientation of the DNA facilitates the hydrogen bonding between the two complimentary strands. This is also important for the processes of DNA replication and transcription.
A mutation is a change in trait. For example people who are lactose intolerant are normal, but people that can can drink milk without a problem have mutated. Hopefully this makes sense and helped.
