1. A researcher had 15 pure bred wild mice which were brown and all were females. They were all mated with a male called Bob. All the offspring were brown. These were then crossed among
themselves with the following results: 293 brown and 115 white.
(i). Determine the colour of Bob.
(ii). Determine which colour is dominant.
(iii). Work out the ratio of brown to white in the 'grandchildren.'
(iv). If the researcher crosses two of the white 'grandchildren', determine the colour of their
offspring​

answer;

c. a tree whose roots are surrounded by wet sand.

explanation;

water stress is an important factor limiting the growth and productivity of forests.water stress is the most often cited cause of poor survival and growth of woody landscape plants.

-insufficient soil moisture is the most common form of water stress, but excess moisture that leads to poor soil aeration (hypoxia) can also result in reduced plant vitality. a tree whose roots are surrounded by wet sand would be least likely to experience water stress.