Question 7 Which equation correctly represents a change in population density?
Change in Population Density = (Births + Immigration) - (Deaths + Emigration)
B.
Change in Population Density = (Births + Emigration) - (Deaths + Immigration)
С
Change in Population Density = (Births - Immigration) + (Deaths + Emigration)
D
Change in Population Density = (Births + Immigration) + (Deaths - Emigration)

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above