Population data
2,500
2.000
1,500
wolves
moose
1.000
500
07
1955
1965
1985
tto
1995 2005
1975
year
key
= wolves -
= moose
which statement correctly describes the
population relationship between the wolves
and moose from 1968 to 1973?
which population increased as the other decreased?

Ascientist is investigating the effects of salinity on fish development. he places fertilized fish eggs in an aquarium that contains low salinity and observes their development. what factor would improve experimental design the most? place the fish eggs in the open ocean because that is the natural habitat include another aquarium that has normal salinity to compare to the low salinity aquarium include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos