Question

question 1 (1 point) saved
flukes tend to have a complex life cycle, using to complete the life cycle.
○ infective cysts
● intermediate hosts
○ terminal hosts
○ sexual reproduction

question 2 (1 point) saved
sinusitis
○ is an inflammatory condition of the lungs.
● can be caused by an allergy.
○ can be caused only by viruses.
○ cannot be treated by antibiotics.

question 3 (1 point) saved
otitis media
○ may be accompanied by a sensation of fullness or pain in the ear.
○ may be accompanied by loss of hearing.
○ may be due to biofilm formation.
● all of the above are correct.

Explanation:

Question 1

Flukes (a type of parasite) have complex life cycles that involve intermediate hosts. Infective cysts are a stage, terminal hosts are the final host, and sexual reproduction is part but not the key to completing the cycle via hosts. Intermediate hosts are essential for their life cycle progression.

Sinusitis is inflammation of the sinuses, not lungs. It can be caused by allergies (among other factors), can be caused by bacteria/viruses/fungi, and bacterial sinusitis can be treated with antibiotics. So the correct option is the one about allergy causation.

Otitis media (middle ear infection) can have ear fullness/pain, hearing loss, and biofilm formation can contribute to chronic cases. So all the listed symptoms/causes are correct.

Answer:

B. intermediate hosts

Question 2