A Species That Is So Important to Its Community That

question 31

Multiple Choice

A species that is so important to its community that its removal can dismantle a food web (such as sea otters) is termed a

• A)capstone species.
• B)flagstone species.
• C)cobblestone species.
• D)cornerstone species.
• E)keystone species.

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Definitions:

Polar Covalent

A type of chemical bond where two atoms share a pair of electrons but they do so unequally, leading to a partial positive charge on one atom and a partial negative charge on the other.

Nonpolar Molecules

Molecules that do not have distinct electrical poles, resulting in a uniform distribution of electrical charge and often being hydrophobic or insoluble in water.

Nonpolar Bonds

Chemical bonds where electrons are equally shared between two atoms, resulting in no significant charge distribution across the molecule.

Most Polar

Describing the molecule or bond that exhibits the greatest electric dipole moment, indicating a high degree of ionic character within the molecular structure.