Which of the following statements regarding flowering plants is correct?
A) The gametophyte is the dominant generation.
B) Female gametophytes develop from megaspores within the anthers.
C) Pollination is the delivery of pollen to the stigma of a carpel.
D) The food-storing endosperm is derived from the cell that contains one polar nucleus and two sperm nuclei.
C
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A microbial ecologist who is interested in studying how gene expression is influenced by different species of bacteria in a biofilm would most likely find a metagenomic library more useful than a genomic library.
Answer the following statement true (T) or false (F)
Although it is said that the twentieth century was the Age of Physics, it is predicted that the twenty-first century will be the age of
A. chemistry. B. computers. C. microbial biodiversity. D. mathematics.
When Tinbergen arranged pinecones around the nest of a female digger wasp, then moved them when the wasp was
gone, the wasp ____.
a. did not find the nest unless the pinecones were returned b. dug a new nest in the center of the repositioned circle of pinecones c. found the nest immediately demonstrating pinecone placement was irrelevant d. abandoned the nest entirely e. took longer to find the nest
______ can be used to separate nucleic acids based on size.
Fill in the blank(s) with the appropriate word(s).