The cell membranes of archaeons that lack a cell wall are strengthened by ________.
A. diglycerol tetraethers
B. diglycerol ethers
C. glycoprotein or protein layers
D. pseudomurein
Answer: A
You might also like to view...
A proto-oncogene ____
a. always becomes cancerous b. causes cancer c. encodes tumor-suppressing proteins d. repairs DNA e. regulates cell division
What is the function of a statolith?
A. to determine whether an organism is stationary or moving B. to determine the direction of gravity C. to amplify sound waves D. to detect vibrations in water
An anaerobic media, which contains ferric ammonium citrate and hemin, bile salts, and gentamicin, is used to isolate which group of organisms?
a. Bacteroides spp. b. Clostridia spp. c. Actinomyces spp. d. Veillonella spp.
Which of the following vertebral column levels has the thickest intervertebral disc?
A) between T12 and L1 B) between C7 and T1 C) between C1 and C2 D) All of the answers are correct. E) None of the answers are correct.