What phase change requires a substance to absorb energy? Select all that apply. condensation
condensation

melting
melting

evaporation
evaporation

sublimation
sublimation

freezing
freezing

How many types of rock can form from the rock cycle

The frequency of alleles in a population that is in hardy weinberg equilibrium? a . changes in each successive generation b. is less important than the frequency genotypes c. shows evidence of the process of natural selection d. remains the same over several generations

How do the sperm cells get from the stigma to the ovules?