The macromolecule RNA is common to all living beings, and DNA, which is found in all organisms except some bacteria, is almost as ...............
ubiquitous
Step 1: Understand the context.
The passage compares RNA, which is common to all living organisms, with DNA, which is also almost universal, excluding a few exceptions.
Step 2: Analyze the options.
- (A): “Comprehensive” is not fitting because it implies coverage of all aspects, which is not the intended meaning.
- (B): “Fundamental” doesn’t capture the idea of being universally present.
- (C): “Inclusive” is too weak to express universal presence.
- (D): “Universal” fits perfectly, meaning present everywhere.
- (E): “Significant” doesn’t work because it refers to importance, not presence.
- (F): “Ubiquitous” also fits as it implies being everywhere.
Step 3: Conclusion.
Both “universal” and “ubiquitous” fit well.
One pen costs \(\$\)0.25 and one marker costs \(\$\)0.35. At those prices, what is the total cost of 18 pens and 100 markers?