Answer:
dioscorea alata is specific name of yam
Alleles in the F1 must be Tt to have height variety in the F2.
Since it has 4 protons, it must have an atomic number of 4. (That makes it beryllium.)
Since it has a 4 protons and 5 neutrons, it has a mass number of 9.
Answer:
Benedict's solution is the indicator for sugar which is made up from copper sulfate and sodium hydroxide
the positive result is the observation of brick-red precipitate.