The European Neanderthals were replaced about 34,000 years ago by
A. Homo habilis.
B. Homo erectus.
C. Homo heidelbergensis.
D. Neanderthals.
E. Cro-Magnons.
E. Cro-Magnons.
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The type of filter used in a laminar flow biological safety cabinet is called a(n) ________ filter.
What will be an ideal response?
Chemical compounds released during tobacco use can cause ____
a. sickle-cell anemia b. color blindness c. cancer d. cystic fibrosis
e. hemophiliaWhich statement is TRUE?
A) Coenzymes and prosthetic groups both bind tightly to their respective enzymes. B) Prosthetic groups bind tightly to their respective enzymes. C) Coenzymes bind tightly to their respective enzymes. D) Coenzymes and prosthetic groups are technically not bound to their respective enzymes. E) None of the above
Some viruses cause disease; they act as __________ in humans.
Fill in the blank(s) with the appropriate word(s).