In fishes, the brooders return to their parents mouth for
feeding
respiration
breeding
protection
Correct answer is D
No explanation has been provided for this answer.
Protection of the body cells of mammals against ultraviolent rays of the sun is brought about by
keratin
melanin
sebum
scales
Correct answer is B
No explanation has been provided for this answer.
A neuron that transmits impulses directly from sensory cells is called
an afferent neuron
an efferent neuron
a relay neuron
a peripheral neuron
Correct answer is A
No explanation has been provided for this answer.
The smallest branches on the cell body of a neuron are called
dendrites
dendrons
ganglia
Schwan cells
Correct answer is A
No explanation has been provided for this answer.
Which of the following statements about nerve cells is not correct?
The axons relay impulses from the cell Body
The cell body is always found at the end of the neuron
Each neuron has a cell body
The dendrites of one neuron transmits impulses to the cell body
Correct answer is B
No explanation has been provided for this answer.