Which factor most likely accounts for the change in the paramecium population from 3 to 20 hours
an increase in the nitrogen content of water
B.
an increase in wastes produced
C.
an increase in available food
D. an increase in water pH

What happens during the heat transfer within earth

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 of these resources is used worldwide to make construction products, pottery, and porcelain