What are the two genotypes that can result in the dominant trait showing in the phenotype

Compare and contrast the adaptations of free-living flatworms and parasitic flatworms

The health, management and conservation of biodiversity, is a challenge facing ecosystems worldwide. the major factors that affect the health and function of the great barrier reef are climate change and pollution. which question investigates the effects of a biotic factor on the reef ecosystem?

The pattern of this wave changes between its beginning and end. what is true about the amplitude and wavelength of the wave when the pattern changes?