Nitrogen __________ by bacteria in root
__________ gives a plant extra nitrogen. Fill in the blank(s) with the appropriate word(s).
Answer: fixation; nodules
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Genomic imprinting is a result of ___________
A. Nucleosome location B. Histone activation C. DNA methylation D. Serine to leucine changes in the genetic code
You and your biology lab class take a field trip to a marine aquarium. Your guide is a marine biologist who studies squids. She explains to your class how squids are able to blend into their environment. She points out that squids have pouches of pigments embedded in their epithelium. The pouches are called
A. trochophores. B. spermatophores. C. lophophores. D. chromatophores. E. phytophores.
An example of a density-independent factor is predation. Indicate whether the statement is true or false
The fruiting structures formed by secondary mycelia of basidiomycetes are known as
A. ascocarps. B. lichen. C. basidia. D. mushrooms. E. yeasts.