Which of the following form a continuous loop; fluid flows in one direction, but ends where it started, and continues in the same loop?
A. Blood vessels
B. Lymphatic vessels
C. Both blood vessels and lymphatic vessels
Answer: A
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Which of the following choices is not a basic feature of cellular communication?
A) The signal must be produced. B) The signal can be produced only by a eukaryote. C) The signal must be transported to a target cell. D) The target cell must respond to the signal.
Which of the following is considered to be one of the primary digestive system hormones?
A. Bile B. Gastrin C. Hydrochloric acid D. Pancreatic amylase
Which of the following is NOT a role of the basal nuclei?
A) playing a role in cognition and emotion B) controlling starting and stopping movements C) initiating protective reflex actions D) inhibiting unnecessary or antagonistic movements
Which anatomical term is correctly matched with its description?
A. Fossa - a ridge extending along the long axis of the bone B. Spine - a low ridge C. Tuberosity - a flat, tongue-shaped process D. Meatus - a tunnel E. Condyle - a small, rounded bump