Biology – Science
Appendix
1.1
The student describes and explains one of the following: increase in grasses (because mice consume grasses),
decrease in snakes (because snakes consume mice), decrease in rabbits (because hawks would prey upon more
rabbits in the absence of mice as a food source), decrease in lizards (because hawks would prey upon more lizards
in the absence of mice as a food source), decrease in hawks (because hawks consume mice as a food source), or
increase in grasshoppers (because grasshoppers compete with mice for the grasses as a food source).
A food web
is
shown.
Hawks
I
Lizards
\
I I
Grasshoppers Mice Rabbits
\I/
Grasses
Identify
and explain
ONE
effect
that
the removal
of
mice would have on the food web.
Review the food web carefully. Then enter your answer and your explanation
in
the box provided.