The diagram illustrates a transverse section of a human eye.
(a) Identify the label matching each function: $\quad[3]$
(i) light detection by photoreceptors
Important Questions on Practice Exam Papers
The diagram illustrates a transverse section of a human eye.
(a) Identify the label matching each function: $\quad[3]$
(ii) sends impulses to the brain
The diagram illustrates a transverse section of a human eye.
(a) Identify the label matching each function: $\quad[3]$
(iii) adjust in order to bend the light rays to be focused on the retina.
The diagram illustrates a transverse section of a human eye.
(b) Draw an arrow showing the direction of the light rays when observing an object.
The diagram illustrates a transverse section of a human eye.
(c) The ear is also a sensory organ. Distinguish between the hair cells in the cochlea and the hair cells in the semicircular canals.
Explain the mode of action of the autonomic nervous system.
The diagram shows the reflex arc. Label the parts 1 to 4.
The number of different songs and lengths of these songs were recorded in two species of passerine, Melospiza lincoln and Melospiza melodia. A group of birds was bred isolated from the rest of the passerines and the birds' songs were also recorded. The results are shown in the bar charts.
Analyse the data to see whether the data supports the hypothesis that birdsong is innate in passerines.
