Question

the pituitary gland is the main gland of the ______ system.

• circulatory
• respiratory
• nervous
• endocrine

the best definition of \heredity\ is

• the chemical transmission of hormones through the blood.
• the relay of information through the nervous system.
• the integration of signals through the lobes of the brain.
• the genetic transmission of characteristics from parents to offspring.

which of the following is not a characteristic of rem sleep?

• irregular pulse rate and breathing
• paralysis of large muscles
• decreased adrenaline and sex hormones
• brain waves resemble when one is awake

Explanation:

Identify the system of the pituitary gland

The pituitary gland is known as the "master gland" because it secretes hormones that regulate other endocrine glands. Therefore, it is the main gland of the endocrine system.

Define heredity

Heredity refers to the biological process where parents pass down certain genes and traits to their children or offspring. This matches the genetic transmission of characteristics from parents to offspring.

Determine the non-characteristic of REM sleep

During REM (Rapid Eye Movement) sleep, physiological activity increases, leading to irregular breathing and heart rate, muscle paralysis (to prevent acting out dreams), and brain waves that resemble waking states. Adrenaline levels actually increase rather than decrease during REM sleep, making "decreased adrenaline and sex hormones" the incorrect characteristic.

Answer:

Question 1

• (A) circulatory
• (B) respiratory
• (C) nervous
• (D) endocrine (Correct answer)

Question 2

• (A) the chemical transmission of hormones through the blood.
• (B) the relay of information through the nervous system.
• (C) the integration of signals through the lobes of the brain.
• (D) the genetic transmission of characteristics from parents to offspring. (Correct answer)

Question 3

• (A) irregular pulse rate and breathing
• (B) paralysis of large muscles
• (C) decreased adrenaline and sex hormones (Correct answer)
• (D) brain waves resemble when one is awake