the amount of food decreases
The amount of food decreased
Which would most likely decrease the genetic variation in the human population?
Decrease.
alternately increase and decrease
decrease the number of hawks
Famine
The aliens start attacking them more
inference- a likely explanation for your observation (i hope this helps) =]
The shrimp population will decrease
the plankton population would decrease
The population's size will decrease.
the plankton population would decrease
It will be more difficult for salmon to find food