A person who has lost a large amount of blood but is still alive is found in a wrecked automobile under a highway bridge. Several people are helping the paramedics load the victim into the ambulance. After the ambulance has departed for the hospital, you overhear the following conversation from the persons who helped the paramedics. "I am certain that when that guy gets to the hospital, they will transfuse him with any blood that they have in the blood bank since he has lost so much blood." The other person says, "Yeah, I bet you're right!" Having had a biology course, you know which blood could be safely given to anyone. Select it below.
A. A
B. B
C. AB
D. O
D. O
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In humans, gametes are different than other cells of the body in that they are _________
A. diploid B. haploid C. genetic mutations D. morphs E. None of the answers are correct
Allopatric speciation occurs because a population
A. merges with another population of the same species. B. becomes geographically isolated and undergoes genetic change. C. becomes extinct and is replaced by a population of a different species. D. shows no genetic change from generation to generation. E. hybrid sterility occurs.
Which well-known paleontologist created a global database of marine animal families to study changes in diversity through time?
A) Charles D. Walcott B) Jere H. Lipps C) David Raup D) Michael Foote E) Jack Sepkoski
A lysogenic bacterium causes lysis of other bacteria on contact.
a. true b. false