The form of nitrogen most likely to be absorbed from the soil by plants is
A. nitrogenous wastes.
B. nucleic acids.
C. nitrogen gas.
D. nitrous oxide gas.
E. nitrite/nitrate ions.
E. nitrite/nitrate ions.
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As diffusion plays a large role in determining the size of bacterial cells, bacteria are often shaped like which of the following?
A. spheres B. spirals C. filaments D. rods E. All of these answer options are correct.
The number of proteins produced by the human genome is significantly less than the number of genes it contains
a. True b. False Indicate whether the statement is true or false
The morning-after pill works by ____
a. blocking ovulation or fertilization b. blocking passage of sperm through the female reproductive tract c. blocking passage of sperm through the male reproductive tract d. causing shedding of the endometrial lining and any implanted embryo e. increasing the effectiveness of the acrosomal reaction
The term "ecology" is defined as the study of the
A) environment. B) relationships between organisms. C) relationships between organisms and their environment. D) impact of humans on the environment.