What May Have Brought an End to the Nearly Worldwide

question 6

Multiple Choice

What may have brought an end to the nearly worldwide glacial episode called snowball Earth?

• A) Oxygen released by sea-floor volcanism at mid-ocean ridges and hot spots resulted in increased ocean water temperatures.
• B) The K-T boundary event took place.
• C) There was increased photosynthetic activity by opisthokonts.
• D) Carbon dioxide entered the atmosphere from volcanic eruptions.

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Definitions:

Specific Position

A particular or distinct place, situation, or status that an individual or object occupies.

Cell

The basic structural, functional, and biological unit of all living organisms, acting as the building block of life.

Partner Gene

A term not commonly recognized in standard genetics; possibly refers to a gene that interacts with another to produce or influence traits. NO.

Alleles

Variants of a gene that occur at the same locus on homologous chromosomes, contributing to the diversity of an organism's traits.