The most significant difference between archaea and bacteria is the:a
lack of a nuclear envelope in archaea.
b. absence of the 70S ribosomes in bacteria.
c. presence of a single filament flagellum in bacteria.
d. absence of peptidoglycans in the cell walls of archaea.
e. presence of fatty acids in the plasma membranes of archaea.
d
You might also like to view...
Gene S controls the sharpness of spines in a type of cactus. Cactuses with the dominant allele, S, have sharp spines, whereas homozygous recessive ss cactuses have dull spines. At the same time, a second gene, N, determines whether or not cactuses have spines. Homozygous recessive nn cactuses have no spines at all. A cross between a true-breeding sharp-spined cactus and a spineless cactus would produce_____.
A) all sharp-spined progeny B) 50% sharp-spined, 50% dull-spined progeny C) 25% sharp-spined, 50% dull-spined, 25% spineless progeny D) all spineless progeny E) It is impossible to determine the phenotypes of the progeny.
Compliance problems are leading to a large increase in antibiotic resistant strains of
A. Streptococcus. B. Staphylococcus. C. Mycobacterium. D. Pseudomonas
Inflowing river waters most often impoverish rather than fertilize estuaries
Indicate whether the statement is true or false
A person you know has been in an automobile accident. The accident caused a dramatic personality change. Before the accident, he was industrious and well liked; after the accident, he is profane, impetuous, and incapable of working toward a goal
Which portion of the brain was most likely damaged? A) Hypothalamus B) Hippocampus C) Temporal lobe D) Frontal lobe E) Parietal lobe