Grade 11 Activities Activity 1
1. How do micro-organisms maintain balance in the environment and the web of life? (8)
2. What is symbiosis?
(2)
3. Mention 3 types of symbiotic relationships and explain each.
(6)
4. What are the 2 types of bacteria that show mutualism and how do they achieve their
roles.
(10)
MARKS= 26
Activity 2​

Which statement is true about common childhood infectious disease? a. children should always be given antibiotics to treat an infectious illness. b. frequency of infectious illnesses usually increases as children grow older. c. having a minor infectious illness weakens a child's immune system. d. infectious illnesses are usually mild and require no medication.

Which of these is the best example of sexual objectification? a) a female initiates a conversation with another female. b) a male proposes marriage to a female. c) a female makes repated coments to a male about his appearence. d) a female proposes marriage to a male.

Viruses ) manufacture their own atp, proteins, and nucleic acidsb) use the host cell to copy themselves and make viral proteinsc) use the host cell to copy themselves and then viruses synthesize their own proteinsd) metabolize food and produce their own atp