Which activity is an example of biotechnology?
A. Egyptians using moldy bread on wounds
B. Escherichia coli producing human insulin
C. Public health officials monitoring diseases in a community
D. A microbiologist using the microscope to view bacteria
E. Bacteria in the soil secreting an antibiotic to kill competitors
Answer: B
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Where does cellular respiration occur?
A. In the chloroplasts B. In the mitochondria C. In the airways of the respiratory system D. In the nucleus
If you were planning the colonization of a distant planet, what would you do to insure that the
population remained genetically healthy for a long time?
What will be an ideal response?Which one of the following is TRUE regarding enzymes?
A) Enzyme function is not affected by changes in temperature or pH. B) Enzymes slow the rate of chemical reactions in living systems. C) Enzymes are consumed in a chemical reaction, so an organism must constantly replace these enzymes. D) Each enzyme catalyzes one specific reaction or group of reactions. E) Enzymes convert products into reactants.
Bones in fingers or toes are called
a. hyoid.
b. patella.
c. scapula.
d. clavicle.
e. phalanges.