Question

circle the letter of the best answer to each question below. 1. a biologist who wants to know what kind of fish live in a lake would a. design an experiment. b. make observations. c. collect all the fish from the lake. d. none of the above

Explanation:

To determine the best approach for a biologist to know what kind of fish live in a lake:

• Option a: Designing an experiment is not the first step here; observation or sampling is more appropriate initially.
• Option b: Making observations (e.g., sampling fish, noting species seen) is a valid way to gather data on lake fish.
• Option c: Collecting all fish from the lake is impractical and harmful to the ecosystem.
• Option d: Since option b is valid, d is incorrect.

Answer:

b. make observations.