As a Seed Germinates,its Shoot Points Upward Toward Light,and Its

question 64

Multiple Choice

As a seed germinates,its shoot points upward toward light,and its root grows downward into the soil.Turn the plant sideways,and the stem and roots bend according to the new direction of gravity.How do roots and shoots respond to gravity?

• A)By the absorption of light by phytochromes
• B)Through circadian rhythms
• C)Through thigmotropism
• D)By sensing the photoperiod
• E)By the movement of statoliths within the cell

Comprehend the physiological mechanisms of thirst and how the body maintains fluid balance.

Describe the neuroendocrine control of hunger and satiety signals in the regulation of food intake.

Explain the concepts and neurological underpinnings of reward, motivation, and pleasure, including their implications for substance use and addiction.

Differentiate between the genetic, hormonal, and environmental influences on sexual orientation and transgender status.