Answer:
The atmosphere is a reservoir for carbon and nitrogen and cannot be a reservoir for phosphorous. This is because the phosphorous cycle does not include gaseous phase.
Explanation:
Answer:
A.Pupa
Explanation:
The four stages are egg, pupa, larva, and adult. The full life-cycle of a mosquito takes about a month.
Answer:
The correct option is cell wall and central vacuole.
Explanation:
The cell wall can be described as an additional membrane around the cell membrane which is present in the plant cells but is absent in animal cells.
The plant cells also have a vacuole located at the center on the cell. The central vacuole is absent in animal cells. It stores the waste and other materials for the plant cell. The plant vacuole also provides support to the cell.
