A married couple plans to have children. The wife is homozygous for blue eyes (bb), and the husband is heterozygous for brown eyes (Bb). What percentage of their children could they expect to have blue eyes? Answers: 25%,75%,100%,50%

50%

Explanation:

Set up a pundit square:

       B      b

b     Bb    bb

b     Bb    bb

So the outcomes are: 2 Bb (brown eyes) and 2 bb (blue eyes

materials water oxygen those are the things i can think of in this moment.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.