Some scientists were studying the plants and animals found in the tumdra. The scientists noticed that during the winter the number of a specific species of
bird increased
Which of the following questions could these scientists not answer through
experimentation?
A Do the birds migrate during the summer?
B. Does the death rate increase during the summer?
C. Is there an increase in hatchlings during the winter?
D. Are the birds satisfied with food sources during the winter?