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

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.

The activity of the modern sample is 1.10 bq . how long does that measurement take?