New matter is not created because matter can neither be created nor destroyed (or so is said) where the matter comes from is from the matter it takes in such as sunlight, nutrients, water, and carbon dioxide, hope i helped.
(Correct me if I’m wrong )
Purple needle grass , wild oats , foxtail , ryegrass , and buffalo grass .
That’d be D. TT and tt
This cross would give all heterozygote offsprings.