Complete the sentence about the nervous system. The brain and spinal cord make up the ........................................ nervous system, and the nerves that run into and out of the spinal cord are part of the ........................................ nervous system.
State the type of neurone shown as A in Fig. 1.1.
Complete Table 1.1.
State one energy-requiring process when focusing on a near object.
State the name of the molecule in red blood cells that transports oxygen.
Explain how oxygen in the capillaries gets to the cells in the eye.
Give two other mechanical barriers that protect the body from pathogens.
State the name of the white blood cells that break down pathogens.
Explain why the shape of particular parts of a pathogen matters in the development of active immunity.
State the name of the group that includes insects and crustaceans.