How Did Multicellular Organisms Evolve from Unicellular Organisms

question 65

Multiple Choice

How did multicellular organisms evolve from unicellular organisms?

• A) Single-celled organisms joined together, or failed to separate after cell division.
• B) Single-celled organisms joined together only.
• C) Single-celled organisms failed to separate after cell division only.
• D) Single-celled organisms joined together, or absorbed other species by endosymbiosis.
• E) One species absorbed another species by endosymbiosis only.

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Definitions:

Health Care Demanded

Refers to the quantity of health care services that individuals are willing and able to purchase at a given price.

Managed-Care Organizations

Health insurance companies that provide medical care directly to the insured individuals through specific networks of doctors, hospitals, and other healthcare providers.

Health Maintenance Organizations

A type of health insurance plan that provides comprehensive healthcare services to enrolled members for a fixed, prepaid fee.

Preferred Provider Organizations

Health insurance plans that offer members lower copayments if they use doctors, hospitals, and other healthcare providers that belong to the plan's network.