Which one of the following animals may occupy more than one trophic levels in the same ecosystem at the same time?

1. Frog 

2. Sparrow

3. Lion 

4. Goat

If a bamboo plant is growing in a far forest then what will its trophic level be:

1. First trophic level (T₁)

2. Second trophic level (T₂)

3. Third trophic level (T₃)

4. Fourth trophic level (T₄)