The diagnostic term that means condition of stones in the common bile duct is Gallstones
<span>Both photoautotrophs and chemoautotrophs synthesize organic compounds from (inorganic) carbon dioxide, a process known as carbon fixation. Photoautotrophs get the energy to perform these reactions from light. Chemoautotrophs get it from electron donors such as hydrogen sulfide and ammonia. Cyanobacteria, by contrast, convert nitrogen from the atmosphere into ammonia, a process known as nitrogen fixation.</span>
In the given case, acetylcholine and norepinephrine are the neurotransmitters that may be present at the greater concentrations.
Norepinephrine refers to a neurotransmitter, which is essential for emotions, attentiveness, dreaming, sleeping, and learning. It is also discharged as a hormone in the bloodstream, where it enhances the rate of heart and makes the blood vessels to contract.
Another neurotransmitter known as acetylcholine refers to the chemical, which the motor neurons of the nervous system discharge to stimulate the muscles.
Answer:
Sea anemones are marine predatory animals. They are like a terrestrial flowering plant due to their colorful appearance. They are coming under the phylum cnidaria.
Sea anemones are found in different forms called a polyp. It has a columnar trunk, on the top of the trunk an oral disc and centrally placed mouth. The mouth is surrounded by tentacles.
Sea anemones have a gastrovascular cavity that serves as stomach. This cavity has one opening both meant for mouth and anus.
Sea anemones are capable of changing their shape and lives on the mud, holding it by pedal disc.
Polychaetes are segmented worms. Each segment of the body bears parapodia. It helps them in locomotion. There are different types of polychaetes, tube-dwelling polychaetes are one of them.
Tube - dwelling polychaetes make tubes to protect their soft bodies.
They don't have parapodia but some special anterior structures for feeding. The tubes are made from calcareous materials.
