Which describes a way in which phosphorus may enter into the phosphorus cycle? Earthquakes release phosphorus. Phosphorus is carried in the rain that was evaporated from lakes. Human use of fertilizers release phosphorus into the groundwater. Phosphorus is transpired from the leaves of plants.

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?

Which element is found in both dna and proteins

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems