Across between a tall pea plant (tt) and a short pea plant (tt) is shown in the punnet square below. which of these best describes the phenotype of the offspring from this cross?
a. heterogeneous dominant
b. homologous dominant
c. homologous recessive
d. heterogeneous recessive

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

Precipitate, and gas

The breaking apart of glucose, which involves spontaneous reactions 

Those are different gas lawshere is a brief description of themcharles's law states that volume and temperature are directly proportional to each other as long as pressure is held constant.  boyle's law asserts that pressure and volume are inversely proportional to each other at fixed temperature.gay-lussac's law introduces a direct proportionality between temperature and pressure as long as it is at a constant volume.    source: