Question 6 Answer the following questions regarding light:

Question 4 Answer the following questions regarding the circulatory system:

Question 6.1   Fill in the missing words.   a.  Light travels in a [ans1] line. b.  A [ans2] lens diverges or spreads the light rays out. c.  When light rays converge or cross, a [ans3] lens is used. (3)

Question 1.2   The picture below shows an electrical cable. The cable is made of copper wire and surrounded by plastic.   Click on the button below to open the picture of the electrical cable.     Why are these to materials used? (2)

Question 6.4 Choose the correct answer. A bright light is used to cast a shadow of an object on a screen. Which diagram shows how the shadow will look on the screen.   a. b. c. d.   Click on the button below to open the picture of the shadows. (1)

Name the cell type along the yellow dashed line [cells], AND name the open space these cells line [space].

Name the cell type along the yellow dashed line [cells], AND name the area of matter where you find them and the central canal [matter-area].

Name the indicated opening of the skull [opening] containing the purple pipecleaner, formerly numbered 110.

Two branches from different cranial nerves are found within this yellow structure.  Select ONE of these nerve branches [branch] AND indicate ONE mode that it carries:  Somatic Motor  /  Visceral Motor  /  General Sensory  /  Special Sensory   [mode-at-left].  If multiple modes are carried, you should still just pick one, or else it’s going to auto-grade as wrong.  

How does Ras oncogene contribute to cancers?