An organ or group of cells that responds to a motor neuron is a/an:
A) receptor. B) glial cell. C) sensory organ. D) effector.
Answer: D
Biology & Microbiology
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When the left ventricle contracts, blood moves into the:
a. aorta b. pulmonary artery c. left atrium d. superior vena cava e. pulmonary circuit
Biology & Microbiology
Unlike white blood cells, red blood cells lose their ________ and ________ as they mature
A) nucleus; organelles B) nucleus; ATP C) organelles; plasma membrane D) nucleolus; cytoplasm E) flexibility; shape
Biology & Microbiology
Why do food chains rarely have more than three or four links?
What will be an ideal response?
Biology & Microbiology
A scientist conducts experiments to test a(n) (observation/hypothesis/theory)
What will be an ideal response?
Biology & Microbiology