Answers BiologyThe Human Body: Part One

The Human Body: Part One — Test Answers

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Which level of organization is shown in the diagram?

organ

organ system

tissue

cell

Which part of the neuron is indicated by the arrow, and what is its function?

The dendrites carry the electrical impulses from the signal receivers to the cell body.

The axon carries information through electrical impulses away from the cell body to the axon terminals and then to other neurons, muscles, or glands.

The dendrites regulate the substances that go in and out of the cell.

The axon contains the nucleus that controls all the activities of the cell.

Which statements best describes the image?

The brown circle A is an effector, and the blue circle B is a receptor.

The brown circle A shows neurotransmitters being released, and the blue circle B shows neurotransmitters being absorbed.

The brown circle A shows neurotransmitters being absorbed, and the blue circle B shows neurotransmitters being released.

The brown circle A is a receptor, and the blue circle B is an effector.

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