Most radiolaria have an internal skeleton made of
A. glycoproteins.
B. cellulose.
C. siliceous material.
D. microtubules.
Answer: C
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Compare and contrast lichens and corals, including the types of organisms involved, the role of each partner, the specificity of the interaction, and the method of transmission for each symbiosis. What will be an ideal response?
If a compost pile is turned frequently and other conditions are adequate for aerobic digestion, the composting can be completed in 6 weeks
Indicate whether this statement is TRUE or FALSE.
The umbilical arteries carry
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Squirrels seem to be able to figure out how to steal seeds from bird feeders no matter what people do to try to stop them. One day, Jeremy put out a bird feeder with a new design, and sure enough, by the end of the day the squirrels were snacking on the
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