Question

practice it!
zoologists, brad and sue, are studying the behaviors of the animals that visit a particular watering hole in the african desert region. they want to know what animals are using this scarce water source.
what type of scientific investigation would this represent?
comparative
descriptive
investigative
experimental

Explanation:

1. Comparative: Involves comparing different groups/entities, but here they aren't comparing, just identifying animals using the water source.
2. Descriptive: Aims to describe a phenomenon (e.g., what, how, when). Here, Brad and Sue are describing which animals use the watering hole, fitting descriptive investigation.
3. Investigative: Not a standard scientific investigation type in this context; the options focus on descriptive, comparative, experimental.
4. Experimental: Requires manipulating variables and testing hypotheses, which isn't done here (they're just observing/identifying, not experimenting).

Answer:

B. descriptive