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This Sphere Provides the Habitat and Nutrients for Many Life-Forms

question 9

Multiple Choice

This sphere provides the habitat and nutrients for many life-forms as rocks and minerals.


Definitions:

Common Ancestor

A species or genetic lineage from which two or more descendant species or lineages have evolved.

Transcription Factors

Proteins that help regulate the expression of genes by binding to specific DNA sequences near genes.

Positional Information

The spatial and temporal cues that cells use during development to differentiate into the correct cell types and form complex structures.

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