There has been a lot of discussion about stem cell research in mainstream literature (i.e., newspapers and magazines). Stem c ells come from all of the following except:
a) umbilical cord
b)embryos
c) bone marrow
d) Stem cells can come from all of these sources
Answer: d) Stem cells can come from all of these sources
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Fungi generally digest large organic molecules ____
a. in special compartments called arbuscules b. within feeding hyphae c. in visible mushrooms d. in special compartments called haustoria e. outside of their cells
You take a dog's temperature at the rectal end of the large intestine. Which surface is this?
a. caudal b. ventral c. dorsal d. cephalic e. superior
Which is incorrect about deuterostomes?
A. The blastopore becomes the anus. B. They undergo spiral cleavage. C. They are coelomates. D. They include the echinoderms. E. They include the chordates.
A symbiotic association between a fungus and a green alga or a cyanobacterium is called a
A. protist. B. mycorrhiza. C. mushroom. D. kelp. E. lichen.