Which Ecdysozoan phylum contains animals called roundworms that are so plentiful in soil and other places that they may be the most abundant animals on Earth?
a. Nematoda
b. Nemertea
c. Annelida
d. Arthropoda
Ans: a. Nematoda
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After returning from a trip to Africa, Tom feels tired and weak and has severe anemia. A blood smear reveals a protozoan in his blood and the health care provider diagnoses malaria. Which of the following could be the causative agent of this disease?
A. Taenia solium B. Plasmodium vivax C. Trichophyton rubrum D. HIV E. Giardia lamblia
The question asks about the configuration of electrons in an atom.
What will be an ideal response?
If a living plant cell is placed in a beaker with pure water, it will take up water until ____
a. within the cell ?P = ??S b. it bursts c. its ?P = 0 d. its ?S = ?S of the pure water e. its ?S = 0
The molecular formula of most monosaccharides represents a multiple of
A) CH3O. B) CH2O. C) CHO. D) CHO2.