3. The predator animals in a desert area include coyotes, rattlesnakes, and red-tailed hawks. Prey animals include jackrabbits, roadrunners, and kangaroo
rats. Investors are planning to build a housing development at the edge of this
desert area.
a. What is likely to happen to the kangaroo rat population if the developers kill most of
the rattlesnakes in the area to protect future homeowners?
b. What is likely to happen to the other species of animals if coyotes move away from
the area due to the increased presence of humans?

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.

What best describes emerging scientific ideas