D. Plants have adapted to deal with the sun in many different ways, and this is one. The stomata are regulated by guard cells, which are activated by different things depending on the species of plant, and guard cells are supposed to keep the stomata from staying open all the time and losing too much water to evaporation. So, the solution is to have the stomata on the bottom of the leaf to prevent direct sunlight contact (and therefore more evaporation), and guard cells to protect the stomata.
No Spanish sorry about that
Answer: Of 125 students with hitchhiker's thumbs, 1/3rd would be homozygous dominant (41 students)
HH homozygous dominant
Hh heterozygous dominant
hH heterozygous dominant
hh homozygous recessive
Coal is considered a non renewable source because the earth cannot replenish it.
