Smaller Worlds Are More Prone to Atmospheric Loss Via Impacts

question 18

Multiple Choice

Smaller worlds are more prone to atmospheric loss via impacts than large worlds because they

• A) have no plate tectonics
• B) have weaker gravities
• C) are more likely to be hit
• D) have less internal heat

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Definitions:

Cell Wall

A rigid layer that lies outside the cell membrane of plants, fungi, and bacteria, providing structural support and protection.

Human Genome Project

an international scientific research project with the goal of determining the sequence of nucleotide base pairs that make up human DNA, and of identifying and mapping all of the genes of the human genome.

Repeated Sequences

DNA segments that are present multiple times within a genome, including both tandem repeats and interspersed repeats.

Nucleotides

Organic molecules that serve as the monomers, or subunits, of nucleic acids like DNA and RNA, consisting of a nitrogenous base, a sugar, and one or more phosphate groups.