Viruses differ from cells in that viruses

A) are alive.
B) contain DNA or RNA, but not both.
C) only reproduce asexually.
D) have more genes.


Answer: B) contain DNA or RNA, but not both.

Biology & Microbiology

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Which of the following dietary fats is considered to be the least healthy?

A. Saturated fat B. Cholesterol C. Trans unsaturated fat D. All dietary fats are unhealthy

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Topic 2.8 - Biosynthesis

What will be an ideal response?

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Which term refers to seedless vascular plants that are represented by only one living genus, Equisetum?

a. mosses b. ferns c. whisk ferns d. horsetails

Biology & Microbiology

Paired lungs are characteristic of ____.

A. spiders B. all birds C. all fishes D. all amphibian life stages E. all insects

Biology & Microbiology