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