Answer:
The amount of water given to the plants depends on the effect of how tall the plant can overall grow. For instance, if all twenty identical plants are being given the same amount of water, then they will grow all at equal rates. However, if there is not equal amount/consistency with the amount of water the plants receive, then this factor may contribute to an uneven growth pattern between all twenty plants. However, other factors (such as location, sunlight, etc.) may also contribute to a plant's growth.
B. Effective against all pathogens
Yes i think so, but not sure
The ability to adapt to arid conditions can mean the difference between life or death for animals and plants that live in the desert. Some animals burrow deep underground in the heat of the day, lie in the shade until late afternoon or early evening, or have evolved salt glands, which allow their bodies to secrete salt but not sweat so they retain water. Most deserts have dry, arid climates with little to no rain, so every living organism that lives there must find a way to adapt, survive and thrive, or die.
I hope this helped