Planetesimals were the predecessors of the planets. How did planetesimals form? Comets were captured in planet-like orbits around the sun.
Bits of matter collided and clumped together.
Passing asteroids were captured in planet-like orbits around the sun.
Large rocks were ejected from the sun.

In tomato plants, mendel found that the allele for smooth seeds (s) is dominant, while the allele for wrinkled seeds (s) is recessive. which of these punnett squares shows crosses between two plants heterozygous for smooth seeds? i need this to be answered as soon as ! sry the picture is bad quality