Trace fossil because a trace fossil is a fossil of a footprint, trail, burrow, or other trace of an animal rather than of the animal itself.
Parent 1: Genotype - RR, Phenotype - Round seed
Parent 2: Genotype - rr, Phenotype - wrinkled seed
Offspring with round seeds: 100%
Punnet:
R R
r Rr Rr
r Rr Rr
I think it is phytoplankton:)
