What is the difference between the grassland and savanna biomes?

Grassland biomes are closer to the equator and receive more rain.
Savanna biomes are closer to the equator and receive more rain.
Grassland biomes contain mostly grasses.
Savanna biomes contain mostly grasses.

Ts assignment - snow day assignment genetic variation and natural selection natural selection relies on genetic variation. in any population of beetles, there are alleles for brown or green color. what happens to the genotype and the phenotype of the beetle population when there are distinct advantages and disadvantages due to color? order the steps that take place during natural selection in this beetle population.