Question

observations of organisms include
descriptions of why the organism has certain traits.
descriptions of the number, size, and arrangement of parts of the organism.
conclusions made about the characteristics of an organism.
conclusions made based on an organism’s dna.

Explanation:

• The first option involves explaining "why" (inference/reasoning, not observation).
• The second option describes the physical parts (number, size, arrangement) of an organism, which is direct observation.
• The third and fourth options involve making conclusions (interpretation, not direct observation).

Answer:

B. descriptions of the number, size, and arrangement of parts of the organism.