Ecotourism_______________

question 39

Multiple Choice

Ecotourism_______________ .

• A)increases biodiversity by introducing new,rare species
• B)decreases biodiversity by the selling of souvenir organisms
• C)maintains biodiversity by providing income to areas that might otherwise be destroyed
• D)decreases biodiversity by causing increased speciation in environmentally sensitive areas

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Definitions:

Polypeptide Chain

A linear sequence of amino acids linked by peptide bonds, forming an essential part of the structure and function of proteins.

Hydrogen Bonds

Weak bonds between molecules or within them, involving a hydrogen atom and a more electronegative atom, important in the structure of DNA and proteins.

Secondary Structure

The level of protein structure describing the regular local structures formed by hydrogen bonds between the backbone amide and carboxyl groups, such as alpha-helices and beta-sheets.

Hydrophilic End

The part of a molecule that is attracted to water and can form hydrogen bonds with water molecules, often found in compounds like detergents.