I think the answer is D. Both a and b
Polyoma vaccine does the Polyomavirus. It’s recommend that parrots get this vaccine yearly.
It is the serous membrane
Answer:
The universe is the answer
In plants, transpiration is a process which is inevitable but potentially harmful, because it can cause loss of water. Loss of water can lead to wilting and eventual death of the plant. Even a little stress can interfere with the plant's growth process.
But, at the same time, transpiration is necessary because of a number of reasons - the transpiration stream aids the processes of mineral absorption, water absorption, energy exchange, helps provide the plant with optimum turgidity, it helps the exchange of gases and so on.
