Approximately what percentage of the energy in one trophic level is incorporated into the next trophic level?

A. 1%
B. 30%
C. 100%
D. 10%
E. 60%


Answer: D

Biology & Microbiology

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Truffles are _______.

A. the mycelium or vegetative part of a fungus B. underground fruiting bodies of a type of fungus that lives in symbiosis with certain species of trees C. sporophytes D. nodules that form as part of the roots of legume plants like beans and peas

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In order to transfer gene a to an F- cell, the sex pilus must be in place for at least ____ minutes

a. 0 b. 6 c. 10 d. 14 e. 25

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A 38-year old woman is going to ovulate in about a week. For how long has the primary oocyte in her Graafian follicle been arrested at prophase I of meiosis? 

A. About a day B. 1 week C. 3 weeks D. 38 years

Biology & Microbiology