Nitrogen has an atomic number of 7. How many
hydrogen atoms are necessary to join with the
nitrogen to form a stable compound?
a. 1
b. 2
c. 3
d. 4
e. 5
Answer: c
You might also like to view...
What personal characteristics and events in Gregor Mendel's life significantly contributed to his ultimate contribution to the study of inheritance?
A. His training in physics and mathematics at the University of Vienna. B. He failed his physics exam. C. He failed his natural history exam. D. He got his teaching license at the age of 21. E. He got a job as a substitute teacher and enjoyed it.
Fred Griffith's experiment, in which he used two strains of Streptococcus pneumoniae, demonstrated that _____
a. pathogenic bacteria function differently in mice than in other organisms b. harmless bacteria can become transformed into disease-causing bacteria by a bacteria transformation factor c. pure DNA extracted from disease-causing bacteria transformed harmless strains into killer strains d. dead cells lose their genetic information e. DNA is a protein rich in nitrogen and phosphorus
. Diploid stage(s) is (are) indicated by
a. A. b. B. c. C. d. D. e. B, C, and D.
The ________ is a modified form of endoplasmic reticulum that stores and releases calcium ions when a muscle contracts
Fill in the blank(s) with correct word