The Following Questions Refer to This Phylogenetic Tree, Depicting the Origins

question 32

Multiple Choice

The following questions refer to this phylogenetic tree, depicting the origins of life and of the three domains. Horizontal lines indicate instances of gene or genome transfer.

A possible phylogenetic tree for the three domains of life.
-If the early history of life on Earth is accurately depicted by the above figure, then which statement is least in agreement with the hypothesis proposed by this tree?

• A)The last universal common ancestor of all extant species is better described as a community of organisms, rather than an individual species.
• B)The origin of the three domains appears as a polytomy.
• C)Archaean genomes should contain genes that originated in bacteria, and vice versa.
• D)Eukaryotes are more closely related to archaeans than to bacteria.

Grasp the principles of sound perception, including loudness, pitch, and timbre, and how these are processed by the human auditory system.

Recognize the role of specific brain regions and neural pathways in the processing and interpretation of visual and auditory information.

Understand the defining characteristics and legal implications of operating as a sole proprietorship.

Comprehend the legal requirements, rights, and obligations associated with franchising.

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Definitions:

Microsystem

A part of the ecological systems theory that refers to the immediate environment in which an individual interacts, such as family, school, peers, and workplace.

Bronfenbrenner

Urie Bronfenbrenner, a developmental psychologist renowned for the Ecological Systems Theory, which explains how the inherent qualities of a child and the characteristics of the external environment interact to influence how the child grows and develops.

Ecological-Systems Model

A framework identifying the various environmental layers that influence an individual's development, from immediate surroundings to broader societal contexts.

Critical Period

A specific time in development when certain skills or abilities are most easily learned.