At a low sugar region of a plant, sugars move from ____ into ____
a. sieve elements; source cells
b. sieve elements; sink cells
c. xylem; phloem
d. phloem; source cells
e. the low pressure phloem; the high pressure plant tissue
b
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The term evolution is used to describe
A. heritable changes in characteristics of a population from one generation to the next. B. any change in an individual that can be observed. C. changes in the number of individuals in a population due to mating. D. the ability of an individual organism to pass on what it has learned, through experience, to the next generation. E. any change in an individual organism that occurs in somatic cells.
In the figure above, identify the photon absorbing region of chlorophyll
a. 3 b. 4 c. 5 d. 6 e. 7C
Hormone leptin is produced by ____________________ cells.Fill in the blank(s) with the appropriate word(s)
Penicillin was discovered by ____________ and was isolated by ________ .
A) Gerhard Domagk; Alexander Fleming B) Selman Walksman; Ernest Fourneau and Paul Erhlich C) Ernst Chain and Howard Florey; Paul Erhlich D) Alexander Fleming; Ernst Chain and Howard Florey