Question

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

Explanation:

Descriptive scientific investigations aim to describe or observe phenomena (like identifying which animals use a water source) without manipulating variables (unlike experimental) or comparing groups (unlike comparative) or a general "investigative" which is too broad. Here, Brad and Sue are observing and describing the animals at the watering hole.

Answer:

descriptive