Your colleague designed a common garden experiment to determine if moisture leve

Question

Your colleague designed a common garden experiment to determine if moisture level influences competition between a native alga and an exotic alga. The design includes four plot types: wet with native only, wet with exotic only, wet with both algae, and dry with both algae. The results are below.

You note that his experimental design is incomplete and, as a result, he cannot support one of the following conclusions. Which conclusion is NOT supported?

a. The native alga's fundamental niche includes wet habitats.

b. The exotic alga's fundamental niche includes wet habitats.

c. The exotic alga competitively excludes the native alga in dry habitats.

d. The native alga competitively excludes the exotic alga in wet habitats.

Plot Native alga Exotic alga Wet: native only Grew well n/a Wet: exotic only n/a Grew well Wet: both algae Grew well Went extinct Dry: both algae Went extinct Grew well

Explanation / Answer

Answer:

b. The exotic alga's fundamental niche includes wet habitats.

If the exotic alga's fundamental niche is wet habitats, exotic alga would haven't been excluded from the wet habitat when both the alga is present in wet habitat.

Related Questions

Navigate

• Browse (All)
• Browse Y
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.