Biology Case study (4 Marks)

Read the following text carefully and answer the questions that follow:
A healthy immune system defends the body against disease and infection. But if the immune system malfunctions, it mistakenly attacks healthy cells, tissues, and organs. Called autoimmune disease, these attacks can affect any part of the body, weakening bodily function and even turning life-threatening.

i. Why are autoimmune diseases called degenerative diseases? (1)
ii. Name the autoimmune disease of body muscles. (1)
iii. Which types of immunity is provided by T-lymphocytes? (2)
OR
Which immune cells form humoral immune system? (2)

Read the following text carefully and answer the questions that follow:
The following is the illustration of the sequence of ovarian events (a-i) in a human female.

i. Identify the figure that illustrates ovulation and mentions the stage of oogenesis it represents. (1)
ii. Name the ovarian hormone and the pituitary hormone that have caused the above-mentioned event. (1)
iii. Explain changes that occur in the uterus simultaneously in anticipation. (2)
OR
Draw a labelled sketch of the structure of a human ovum prior to fertilization. (2)