The Biosphere Is Best Defined as _______________

question 14

Multiple Choice

The biosphere is best defined as _______________

• A)a grouping of plants and animals that interact with one another
• B)all living and nonliving parts, including the flow of energy and matter
• C)all Earth's organisms and their physical and aquatic environment where energy and matter are cycled
• D)all Earth's organisms and the nonliving environment with which they interact
• E)a regional grouping of plants, animals, and abiotic factors

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Definitions:

Paralog

Genes that arise by duplication within the same genome and may diverge to perform functions related to or distinct from the original gene.

Ortholog

Genes in different species that evolved from a common ancestral gene by speciation and retain the same function.

Speciation Event

The process by which new genetically distinct species evolve from a single ancestral species.

Gene Duplication

A process in which a chromosome segment is copied resulting in multiple copies of the same gene in the genome, often leading to new genetic functions.