Answer the question using the accompanying figure. The molecule shown is held together by ____
a. polar covalent bonds
b. van der Waals forces
c. ionic bonds
d. hydrogen bonds
e. nonpolar covalent bonds
ANSWER: d
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When one species reduces or adversely affects the population of another, but the affected species has no influence in return, the relationship is referred to as ________
Fill in the blank(s) with correct word
The outer layer of cells that protects the plant is called the
A. vascular tissue. B. endoderm. C. epidermis. D. pericycle.
The tendency of an atom to pull electrons toward itself is referred to as its _____.
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