Refer to the accompanying figure. The function of the structure labeled as 14 is to:
a. stimulate the ventricles to contract.
b. pump blood to the lungs.
c. pump blood into the systemic circulation.
d. receive blood from the systemic circulation.
e. receive blood from the pulmonary circulation.
b
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In mammals, Hox genes:
A. specify limbs and other structures associated with each body segment. B. direct development of structures that become parts of the hindbrain, spinal cord, and vertebral column. C. evolved by partial-genome duplication from the ancestral genes. D. are expressed in a sequence that does not reflect their linear order on the chromosome or the regions they affect. E. All of these choices are correct.
Water has many unique properties due to the bonds between the water molecules. Which type of bond is found between individual water molecules?
a. covalent b. ionic c. hydrogen d. van der Waals interactions
"Ontogeny recapitulates phylogeny" is a statement describing:
A. ultimate causes of the developmental changes in organism B. proximate causes of the developmental changes in organism
Which apicomplexan has caused outbreaks, associated with fecal-contaminated imported raspberries, and also fresh greens and drinking water?
A. Toxoplasmosis B. Babesiosis C. Cryptosporidiosis D. Cyclosporiasis E. None of the choices are correct.