The Big Bang Formed

question 105

Multiple Choice

The Big Bang formed:

• A)only hydrogen.
• B)only helium.
• C)hydrogen and helium, but nothing else.
• D)all elements up to iron.
• E)all elements found in nature now.

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Definitions:

Muscular Dystrophy

A chronic disease characterized by a progressive wasting away of the muscles.

Ova

The female reproductive cells or eggs in animals and humans, which when fertilized by sperm, can develop into a new organism.

Embryo

The early stage of development in many multicellular organisms, in humans it refers to the phase of development from conception until the eighth week of gestation.

Lungs

Organs in the respiratory system responsible for gas exchange, taking in oxygen and expelling carbon dioxide from the bloodstream.