Like other members of their phylum, jellyfishes have specialized stinging cells called ____ as part of their epidermis,
which they use to paralyze small prey.
a. choanocytes
b. polyps
c. cnidocytes
d. flame cells
e. tentacles
ANSWER: c
You might also like to view...
Activation of the IFN-? globin promoter is an example of a histone code. Of the steps given, which is the third in this process?
A. The TATA box in the promoter is exposed. B. Complexes containing Gcn5 bind to the promoter and acetylate nearby nucleosomes. C. A chromatin remodeling complex such as SW1/SNF binds to and moves the nucleosome. D. Initiation of transcription occurs. E. A protein kinase binds to the Gcn5 complex and phosphorylates nearby nucleosomes.
Many arthropods are equipped with a highly organized central nervous system
a. True b. False
At the time of ovulation, ____
a. the cervical mucus thins b. the ovary stops making progesterone c. LH levels are minimal d. LH levels are minimal e. progesterone levels are at their peak
You use several model organisms in your lab's research. Which of your model organisms would you expect to exhibit a higher mutation frequency: E. coli, D. melanogaster, or M. musculus?
What will be an ideal response?