Nematode worms and annelid worms share which of the following features?
A) a digestive tract with two openings (a mouth and an anus)
B) molting
C) presence of a circulatory system
D) presence of segmentation
E) absence of species with parasitic lifestyles
Answer: A
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Symptoms of cryptosporidiosis include
A. chills, fever, and sweats. B. bloody, mucus-filled stools and fever. C. a red skin papule that spreads to a large ulcer. D. headache, sweats, vomiting, severe abdominal cramps, and diarrhea.
The substrate(s) in the Bile Esculin Agar is (are):
A. Bile salts only B. Ferric citrate C. Esculin D. Esculetin E. Bile salts & esculin
Who is credited with first observing cells?
A) Robert Hooke B) Anton van Leeuwenhoek C) Robert Koch D) Louis Pasteur E) Carolus Linnaeus
What is the term given to the theory that states that the fertilized egg contains a complete miniature adult?
A) conjugation B) cell theory C) preformation D) transduction E) transformation