Answer:
The three types of symbiotic relationship are: mutualism, commensalism, and parasitism.
Example: 1.Mutualism: Pistol shrimps and gobies.
2. Commensalism: Sharks and Remora Fish.
3. Parasitism:. Tapeworms, fleas, and barnacles.
I would say D...just because of the greenhouse effect
So Mendel got roughly 75% yellow and 25% green in f2. This means that f1 contains all heterozygous genes, as shown below
Y y
Y YY Yy
y Yy yy
Summary: 75% YY or Yy, 25% yy
Which means that green (y) is a recessive phenotype, while yellow (Y) is a dominant phenotype, since plants with heterozygous genotype Yy express the yellow trait.
Yes because I think that more-complex cells need the chromosomes for help