What would the oxygen measurements be on either side of the apparatus if there were no fish in it and the two chambers were fully sealed off from one another?

a. the same as with the fish present

b. via osmosis, the oxygen on both sides would equilibrate and be equal.

c. the oxygen levels would be maintained at whatever they started at.

d. oxygen uptake would maintain at 80 percent.

Which describes how weathering and erosion are different? weathering is caused by water. erosion is caused by wind and ice. erosion transports sediments. weathering is a natural process.

Consider darwin's first writings on the theory of natural selection. an important point of darwin's essay on the principle of population, written in 1798, was a peer's observation that in nature plants and animals produce far more offspring than can survive, this observation can be attributed to a) charles lyell. b) thomas malthus. c) jean-baptiste lamarck. d) johann friedrich meckel.

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.