Which of the Following Is True About Extinction

question 23

Multiple Choice

Which of the following is true about extinction?

• A) Overexploitation by hunting and fishing is the foremost threat to tropical animals and plants.
• B) Without human activity, all species would survive and there would be no extinctions.
• C) There are many causes of extinctions and an animal or plant may go extinct for any of a combination of these factors.
• D) Commercial hunting and fishing are careful not to deplete animal reserves.
• E) Introduction of new alien species helps preserve biodiversity and slow extinction.

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Definitions:

Methylhexene

An alkene with a methyl group and a hexene (six carbon linear chain with a double bond) component in its structure.

Elimination

A type of chemical reaction where elements are removed from a compound, resulting in the formation of a double or triple bond.

Substitution

A chemical reaction where one atom or group of atoms in a molecule is replaced with a different atom or group of atoms.

Highly Substituted

Refers to a molecule that has a high number of substituent groups attached to its carbon backbone, influencing its chemical properties and reactivity.