Fleas are the intermediate host for Dipylidium caninum tapeworm, and dogs are the definitive host. Which stage of the parasite could be found in the flea?

a. cysticerus larva
b. proglottids
c. scolex
d. adult


Ans: d. adult

Biology & Microbiology

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Explain how ozone (O3) is both beneficial and harmful to life. What will be an ideal response?

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The evolution of flower symmetry is best explained by 

A. a new gene mutation. B. the modification of an existing gene for a new function. C. homoplastic convergence. D. gene duplication and divergence. E. conserved genes.

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Glycolysis converts glucose into two ________ molecules.

Fill in the blank(s) with the appropriate word(s).

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What is the most extensive surgery for breast cancer is?

A. Modified radical mastectomy B. Radical mastectomy C. Simple mastectomy D. Lumpectomy

Biology & Microbiology