Answer:
B.
During inhalation, the external intercostals contract.
Answer: vit D
Explanation:
To help strengthen bones.
The organisms that cause schistosomiasis are different type of parasitic worms (Option B).
<h3>What is schistosomiasis?</h3>
Schistosomiasis is a infection caused by worms that inhabit aquatic environments in subtropical/tropical areas.
The main vectors of this disease include <em>Schistosoma mansoni</em> and <em>Schistosoma haematobium</em>.
In conclusion, schistosomiasis is caused by parasitic worms (Option B).
Learn more about schistosomiasis here:
brainly.com/question/16846278
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all staff should be CPR and First Aid Certified
