Plzz help a school wants to know what percent of their students ride the bus home. The bus drivers asked students they drive one day of students they drive one day is t a survey or experiment?

An ecosystem is in a certain area and includes living and non living plus there is weather conditions and a biome is a large amount of area with similar climate.so ecosystem is based on weather and biome is based on the average climate 

Aplant cell has vacuoles and a cell wall

25% or 1/4 of the offspring would have red flowers, 50% or 1/2 of the offspring would have pink flowers, and 25% or 1/4 of the offspring would have white flowers. i crossed rr and rr which are the pink-flowered genotypes to find these ratios.