Question

use the drop - down menus to choose the type of investigation that best completes each statement. investigations show relationships that do not always indicate cause - and - effect relationships. investigations cannot perfectly reproduce the conditions of the natural world. investigations often are not repeatable because the results may change over time. descriptive comparative experimental

Explanation:

To solve this, we analyze each statement and match with the investigation type:

1. "Investigations show relationships that do not always indicate cause - and - effect relationships."

Descriptive investigations aim to describe phenomena and show relationships without proving causation. So this matches Descriptive.

1. "Investigations cannot perfectly reproduce the conditions of the natural world."

Comparative investigations compare different groups or conditions, and recreating natural conditions perfectly is hard. So this matches Comparative.

1. "Investigations often are not repeatable because the results may change over time."

Experimental investigations are about controlled experiments, but if results change over time (uncontrollable factors), they may not be repeatable. Wait, no—actually, descriptive investigations (first) show non - causal relationships, comparative (second) can't reproduce natural conditions, and experimental (third) issues? Wait, re - checking:

Wait, the three statements and three types (Descriptive, Comparative, Experimental). Let's re - align:

• Descriptive: Shows relationships (not causal) → first statement.
• Comparative: Compares, can't reproduce natural conditions (since they study existing groups/conditions) → second statement.
• Experimental: If results change over time, not repeatable (since experiments need control, but if time - dependent, hard to repeat) → third statement.

Answer:

s:

1. Descriptive
2. Comparative
3. Experimental