A plant with variegated (two-coloured) leaves was left in the sun for several hours. A piece of one of its leaves were then detached (removed) and tested for sugar. Explain, as fully as you can, why the yellow region of the leaf had not produced sugar. (5 marks)

it enhances antibody production by t cells of the adaptive immune system.

hope i'm right

explanation:

the correct answer is c   with the systems

answer: although many types of viruses can cause a common cold, rhinoviruses are the most common culprit. a cold virus enters your body through your mouth, eyes or nose. the virus can spread through droplets in the air when someone who is sick coughs, sneezes or talks. theres your answer

explanation: