Which light is least effective in photosynthesis?
1). Blue light
2). Green light
3). Red light
4). Sunlight
1. Question 2:State two economically important uses of:(a) Heterotrophic bacteria(b) Archaebacteria
2. Through cell membrane, which substances can pass more easily than others?
3. Pollen is produced by the process of
5. Which of the following is the bestg indicator of SO2:
6. The members of rhodophyceae are commonly called _________ algae.
7. Which of the following tissues in mammals show the least capacity for regeneration?
8. Which group of animals was the first to evolve to fly?
9. The sound lub-dub lub-dub is produced by
10. Which one of the following substances is normally found in urine?