The Only Known Source of Human Embryonic Stem Cells Is

question 39

Multiple Choice

The only known source of human embryonic stem cells is:

• A) placental tissue
• B) umbilical cords
• C) early human embryos
• D) brain tissue
• E) nerve tissue

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Definitions:

N1 Sleep

The initial stage of the sleep cycle, characterized by light sleep, where one can be easily awakened and might experience sudden muscle contractions known as hypnic jerks.

Viral Infections

Diseases caused by viruses that can affect various parts of the body, often leading to illness.

Sleep Deprivation

The condition of not having enough sleep, which can lead to a variety of physical, cognitive, and emotional deficits.

Uncontrollable Attacks

Episodes or outbursts that an individual cannot inhibit or prevent, often used in the context of panic attacks or seizures.