The Flatness Problem and Horizon Problem

question 41

Multiple Choice

The flatness problem and horizon problem

• A) are solved if there was a sudden inflation of the universe at a very early time.
• B) show that the universe cannot be described by the steady state theory.
• C) show that dark matter must be a small fraction of the total mass of the universe.
• D) imply that the universe was once much hotter than it is now.
• E) imply that the inflationary theory is incorrect.

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Definitions:

Antral Follicle

A fluid-filled sac in the ovary that contains an immature egg, critical in the process of ovulation.

Follicle-Stimulating Hormone

A hormone secreted by the pituitary gland that stimulates the growth of ovarian follicles in females and sperm production in males.

Testosterone Levels

The amount of the male sex hormone, testosterone, present in the bloodstream, affecting various bodily functions and characteristics.

Estradiol Levels

The concentration of estradiol, a form of estrogen that plays a critical role in reproductive and menstrual functions, in the blood.