A child has a bicycle accident and is rushed to the ER. The doctors stop the bleeding, but the child needs a transfusion. Fortunately, the patient is AB-positive, so the doctors can give him ________
A) O negative only B) O positive only
C) AB negative or positive only D) any blood type
Answer: D
You might also like to view...
Gastrulation results in the formation of:
A. a bilaminar embryo consisting of the epiblast and the hypoblast. B. a trilaminar embryo consisting of the epiblast, the mesoblast, and the hypoblast. C. a gastrula consisting of a trilaminar embryo. D. a trilaminar embryo consisting of ectoderm, endoderm, and mesoderm. E. a bilaminar gastrula consisting of the epiblast and the hypoblast.
You have chosen RNA as the most likely molecule to be first enclosed by a membrane. You understand that it has the ability to store information and can self-replicate, but what else is necessary for simple metabolic processes to occur in a timely manner?
A. A biological catalyst. B. Energy from ADP. C. A pump, to drive a concentration gradient. D. A more stable nucleic acid. E. The ability to carry out structural roles.
Molecular techniques have revealed that ____ caused the loss of forelimbs in snakes
a. the absence of Hoxc6 and Hoxc8 genes in snake genomes
b. selection in dinosaurian ancestors of snakes c. the lack of usefullimbs d. mutations in limb buds e. changes in the spatial pattern of Hoxc8gene expression
Most of the bacteria that cause human disease are ____
a. chemoautotrophs only b. chemoheterotrophs c. photoautotrophs d. photoheterotrophs only
e. chemoautotrophs and photoheterotrophs