Answer:
B. Nebula
Explanation:
A solar system, an asteroid, and a galaxy is not made of dust and gas. But a nebula is made of dust and gas
9:3:3:1
Using white tall (RRBB)and black short (rrbb) as an instance
Then I have white tall:9
White short:3
Black tall:3
Black short: 1
So this shows the phenotypic expression of a heterozygous with a dominant and recessive growth
The four phenotype in this dihybrid in a Punnett square is stated above as 9:3:3:1
Thanks
Meristem at the tips of stems and roots produce rapid growth in plants. Meristem is a tissue that is mostly found in plants. Meristematic cells are responsible for the plant's rise and to keep the plant growing.
