Which one of the following elements is likely to form exactly three non-ionic interactions with hydrogen?
A. phosphorus
B. oxygen
C. carbon
D. sulfur
E. chlorine
Answer: A
You might also like to view...
Who provided X-ray diffraction photographs of purified DNA fibers that suggested a helical structure with a consistent diameter of about 2 nm and a complete helical turn every 3.4 nm?
A. Hershey and Chase B. Chargaff C. Franklin D. Watson and Crick
The cycle of coral reef formation involves:
a. bioerosion. b. budding to form corallites. c. solidification of rubble by encrusting coralline algae. d. a followed by c
Each gamete gets only one copy of an allele because it has ____
a. one copy of each chromosome b. one nucleus c. one chromosome d. a diploid number of chromosomes e. either an X or a Y
Select the best response to the question. Which of the following is characteristic of a virus?
A) Cannot exist outside of a living host. B) Does not contain a nucleus. C) Uses the host cell's reproductive system. D)Has both beneficial and harmful forms.