Suppose an Earthquake Occurs on an Imaginary Planet

question 91

Multiple Choice

Suppose an earthquake occurs on an imaginary planet. Scientists on the other side of the planet detect primary waves but not secondary waves after the quake occurs. This suggests that:

• A) part of the planet's interior is liquid
• B) all of the planet's interior is solid
• C) the planet has an iron core
• D) the planet's interior consists entirely of rocky materials
• E) The planet's mantle is liquid

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Definitions:

Brown Algae

A large group of mostly marine multicellular algae, including many seaweeds, that are typically brown due to the presence of fucoxanthin pigment.

Representative Clade

A taxonomic group representing a branch on the tree of life, including an ancestor and all its descendants.

Supergroup

A high-level taxonomic rank in the classification of organisms that is above the level of kingdom, used to organize the diversity of life.

Diplomonads

Diplomonads are a group of protozoans, often parasites, characterized by having two nuclei and a symmetrical appearance.