Answer:
Traditional treatment options for cholinergic urticaria are antihistamines, leukotriene inhibitors, and immunosuppressives. However, cholinergic urticaria in some patients may be refractory. Sometimes, an attack of cholinergic urticaria can be aborted by rapid cooling.
The answer is A- thylakoids
The answer is community. A community is a group of people living in the same place.
Answer:
A. Lancelet
B. All chordates
Explanation:
A. Dorsal nerve chord is the only <u>unique feature</u> among all members of <u>phylum chordata</u> (mainly found in subphylum Vertebrata). In the given list, only lacelet is the Chordate whereas <u>snail belongs to phylum Mollusca</u>, <u>grasshopper belongs to Arthropda</u>, and <u>jellyfish belongs to Cnidaria</u>. Dorsal nerve cord runs along the length of organism's body.
B. <u>Gill slits</u> are <u>opening structures</u> to gills through which water passes from pharynx/throat to exterior. Their main purpose is to help filter the food particles available in surrounding water. Although they are typical for amphibians and fishes, chordates also possess gill slits at embryonic stages.
