<span>The answer is to control the crossing of the traits.
The idea of preventing plants from self-pollinating is to control the crossing of the traits. If plants were self-pollinating, he could not know if the traits are inherited from the same plant or from the other. By preventing this, he could cross parents with known phenotype and that way learn about crossing process and inheriting process.</span>
Xylem is one of the two types of transport tissue in vascular plants, phloem being the other. The basic function of xylem is to transport water from roots to stems and leaves, but it also transports nutrients.
<h2>Answer:</h2>
If the formula for glucose is C6H12O6, Six number of carbon atom will used to produce a glucose.
Equation:
6CO2 + 6H2O + light energy = C6H12O6 + 6O2.
Answer: Mass
Explanation: i hope i helped i did that yesterday and it was right but i hope it is??