True multicellularity is a major characteristic of
A. all eukaryotes and a few prokaryotes.
B. animals and plants only.
C. eukaryotes only.
D. protists, plants, and animals.
E. prokaryotes and protists.
C. eukaryotes only.
You might also like to view...
Cactus spines are modified leaves adapted for dry climates, while the leaves of the Venus fly trap plant are adapted to
capture insects. These structures are therefore ____.
a. analogous b. homologous c. recessive d. homozygous e. morphogenic
Mannitol salt agar is selective for Staphylococcus aureus because this organism
A. is often resistant to methicillin. B. can withstand high salt concentration. C. is unique in its ability to ferment mannitol. D. can tolerate brief exposures to high temperature. E. can synthesize catalase.
Which of the following has the lowest (most negative) water potential?
A) root cortical cells B) root xylem C) leaf air spaces D) leaf cell walls
New vaccine strategies resulting from progress in biochemistry and molecular biology include the production of
A) DNA vaccines. B) recombinant vector vaccines. C) synthetic peptide vaccines. D) DNA, recombinant vector, and synthetic peptide vaccines.