What is the enzyme responsible for converting free carbon dioxide in the blood into forms in which it can be transported in the blood?
a. carbonic anhydrase
b. carboxypeptidase
c. carbonase
d. decarboxylase
e. dehydrogenase
a
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Archaeopteryx lithograpica:
A. was the first fossil directly linking birds to reptiles B. had a beak with teeth C. had a small, reptilian breastbone D. had both claws and feathers on the wings E. All of the choices provided are true
The coelacanth (Latimeria) is ________
a. an Australian lungfish b. an extinct lobe-finned fish c. the only living lobe-finned fish d. an early amphibian
All of the following are signs and symptoms of urinary tract infection except ________.
A. red blood cells in urine B. white blood cells in urine C. diarrhea D. painful urination E. nausea
Select the best choice for the following statements in reference to the four hominids listed below.
A. Homospecies whose fossils were discovered with stone tools in Kenya. B. The first species found outside of Africa and established a population in the Republic of Georgia. C. The only surviving Homo species. D. The Neanderthals belong to this species.