If Our Year Were Twice as Long (That Is,if Earth

question 94

Multiple Choice

If our year were twice as long (that is,if Earth took twice as many days to complete each orbit around the Sun) ,but Earth's rotation period and axis tilt were unchanged,then

• A)stars would take twice as long to rise and set.
• B)the cycle of precession would take 13,000 years instead of 26,000 years.
• C)the four seasons would each be twice as long as they are now.
• D)the Earth would not have seasons.

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Definitions:

Thyroxin

Thyroxin, also known as thyroxine or T4, is a hormone produced by the thyroid gland, essential for regulating metabolism and growth in the body.

G Protein-Linked Receptors

A large family of cell surface receptors that, when activated by a ligand, initiate a signal transduction pathway involving G proteins.

Transmembrane Proteins

Proteins that span the entire lipid bilayer of a cell membrane, involved in various functions such as signal transduction and transportation of substances.

Intracellular Signal

A form of communication within cells where signals are transmitted to elicit a specific response.