Explanation:
The urinary bladder is a muscular sac that temporarily stores urine received from the kidneys via the ureters, until micturition. The urethra drains urine to the exterior.
Explanation:
The hepatic portal system directs nutrient-rich blood from intestines to liver. Blood pressure is highest in arteries; fish have two-chambered heart; foramen ovale is a fetal structure that closes after birth.
No comments yet. Be the first to start the discussion!