Why do plant cells have an additional layer surrounding the cell membrane? What is this layer known as?Do you agree? Give reason for your answer.
MULTIPLE CHOICE QUESTIONS 1. Choose the correct statement with respect to unicellular organisms: (a) in unicellular organisms, tissues work in co-ordination to perform different functions. (b) unicellular organisms do not require food. (c) unicellular organisms respire and reproduce. (d) all unicellular organisms move by cilia. 2. Majority of cells cannot be seen directly with our […]