Browsing through a seed catalog, you are tempted to order several beautiful floral varieties, but worry that you will spend too much on your garden every year. Which plants should you buy?

A. biennials, which will last twenty years before they die
B. annuals, which will come back year after year
C. herbaceous perennials, which will come back year after year
D. woody perennials, which require little space and few resources


Answer: C

Biology & Microbiology

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Answer the following statement true (T) or false (F)

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What distinguishes expression vectors from other cloning vectors?

a. Expression vectors do not have an origin of replication. b. Only expression vectors have origins of replication. c. Expression vectors contain regulatory sequences to allow transcription and translation of an inserted gene. d. Inserted genes cannot be transcribed from an expression vector. e. Expression vectors do not contain antibiotic resistance genes.

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Which of the following are NOT protists?

a. bacteria b. diatoms c. slime molds d. dinoflagellates e. euglenoids

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A tracheid is

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