The algae that live within the coral reefs exhibit __________ relationship with the coral itself
a. a parasitic
b. a predator–prey
c. a symbiotic
d. no
C
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This class of macromolecules serves as important energy stores and is a major component of plasma membranes.
A. lipids B. carbohydrates C. nucleic acids D. proteins E. ions
What is the length of an average rod-shaped bacterium (bacillus)?
A) 3 ?m B) 3 nm C) 0.3 mm D) 0.03 mm
A slipper limpet can change its sex from female to male
Indicate whether the statement is true or false.
Which of the following is not true about archaeal ribosomes?
A. Differences in rRNA nucleotide sequences led to the division of the prokaryotes into two separate taxa. B. They may possess ribosome binding sites homologous to bacterial Shine-Dalgarno sequences. C. They have similar antibiotic sensitivities to those of bacteria. D. They are 70S like bacterial ribosomes.