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Most coelomates possess a "A. Circulatory system" because the main feature of these animals is that they posses a digestive tract, which requires a certain amount of circulation.
Hydrogen is the right answer
The body system that arterial wall belong to is blood vessels, i would say. And Fatty deposit belong to connective tissue i would say.
Answer: Unconditional response
Explanation:
Sonya had leukemia since childhood and because of this she had to undergo chemotherapy for a numerous times.
The side effect of the chemotherapy is that she felt nausea for numerous times because of chemotherapy.
After a year of treatment even the waiting made her feel the same because of the unconditioned response by her brain.
This can be defined as an involuntary reaction which is produced by the brain in case of the similar conditions. This is a unconditional response produced due to unconditioned stimuli.
