Male pigs have a retractable penis that can be withdrawn into which orifice?
A) urinary bladder
B) urogenital sinus
C) external urogenital orifice
D) renal capsule
C
Explanation:
A) The urinary bladder stores urine.
B) In a female pig, the vagina and the urethra empty into the urogenital sinus.
D) The renal capsule is a fibrous sac that encases the kidneys.
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Which of the following statements about the endocrine system is true?
a. Each endocrine gland secretes a single type of hormone. b. Each endocrine hormone is secreted by a single endocrine tissue. c. Each endocrine hormone acts on a single target tissue. d. Each endocrine hormone activates a single type of receptor. e. Many endocrine tissues have other non-endocrine functions.
Which of these would NOT increase pressure on the vessel walls?
What will be an ideal response?
Sexual reproduction entails the union of two gonads to form a zygote.
Answer the following statement true (T) or false (F)
Which area of the brain monitors conditions within and outside of the body?
a) pituitary gland b) hypothalamus c) pineal gland