The part of corn that is used for fuel or food for humans is the
A) fruit.
B) root.
C) zygote.
D) flower.
Answer: A
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You have discovered a new microorganism, but you want to know if it is a eukaryote or a prokaryote. To investigate this question you prepare a slide with a simple stain and view it with a light microscope with a 40X objective lens and 10X ocular lens
You also prepare a control slide using Saccharomyces cerevisiae (a unicellular eukaryote). You can see the cells on your control slide, but you don't see cells when you look at your unknown microorganism. What can you conclude from this experiment? A) The experiment failed to visualize the organism because the stain killed it. B) Your new unknown microorganism is probably a virus. C) The cells of the new unknown microorganism may be too small to see with the objective and ocular lenses you used. D) The new unknown microorganism is probably an archaeon.
Carbon dioxide dissolves in water to form ____
Fill in the blank with the appropriate word.
The causative agent in a case of sepsis can be isolated by
A. inoculating blood agar with a sample of the patient's blood. B. centrifugation of the blood to separate cells and plasma. C. performing a Kirby-Bauer assay on a sample of the patient's blood. D. sending a blood sample to the CDC laboratories in Atlanta.
Colchicine is a drug that:a
arrests cells in mitotic telophase. b. stimulates meiosis. c. prevents DNA replication. d. arrests cells in mitotic metaphase. e. prevents cells from entering prophase.