Molecular Data Support the Hypotheses That Metazoans Have a Single

question 5

Short Answer

Molecular data support the hypotheses that metazoans have a single origin or are _________________.
Sponges are monophyletic. They arose from a single common ancestor. All other animals comprise a sister group to the sponges.

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Definitions:

Subsistence Economy

An economic system where communities primarily focus on producing or obtaining enough resources to meet their immediate needs, with little or no surplus for trade.

Childrearing

The process of bringing up and caring for children, including their physical, emotional, educational, and social development.

Obedience

Compliance with orders or requests from authority figures, or adherence to societal norms and laws.

Core Values

Those values especially promoted by a particular culture.