Lectura TOEFL

📖 Texto de lectura

❓ Pregunta According to the passage, what is the primary difference between a keystone species and a dominant species?

A. A. Keystone species are always predators, while dominant species are not.
B. B. Keystone species have effects that cannot be replaced by other species, while dominant species are functionally redundant.
C. C. Dominant species are more abundant than keystone species, but both have similar ecological impacts.
D. D. Keystone species are found only in marine ecosystems, while dominant species are terrestrial.

✅ Respuesta correcta

B. Keystone species have effects that cannot be replaced by other species, while dominant species are functionally redundant.

TOEFL Reading Tips

Skim the questions first, underline keywords, then locate in the passage
Watch for paraphrasing; correct answers are often reworded
Infer vocabulary meaning from context, not just memory
Base inferences on the passage; avoid over-extrapolation
Manage time: about 18 minutes per passage

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