If a plant with purple petals (pp) is crossed with a plant with white petals (pp), what is the phenotype for the f1 generation? purple petals white petals a combination of purple and white petals

The genotype for the F1 generation is PURPLE PETALS.
In cross breeding, the offspring of the original generation in a cross are called F1 generation. When two breeding of a particular living organisms are crossed, then the F1 generation will be all the same.

All of the offspring will be heterozygous, meaning they'll have both a P and p allele (Pp), and all will display the dominant allele, P, meaning they will all have purple petals. 

The phenotype for the F1 generation, therefore, is purple petals

Competition. interaction among organisms that compete for the same natural resource (food, shelter, water, space) in an ecosystem. predation. an interaction in which one organism kills another for food. predator. prey. symbiosis. mutualisum. commensalisum. parasitisum.

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