SAAT (English)

Biology & Environment: sample 5

These questions are ETEC/Qiyas's own officially published trial-exam questions, shown here with attribution. They are not sold and are not part of Smart Advanced Network for Education, Development & Achievement's original question bank.

Directions

Read the following questions. Choose the right answer.

There is only ONE correct answer to each question.

Which of the following is the most complex level of biological organization?

organism
population
community
ecosystem

Show answer

Correct answer: D. ecosystem

Why

The hierarchy from simplest to most complex is organism → population → community → ecosystem, so ecosystem is the most complex of the four.

Source: The Standardized Academic Achievement Test (SAAT) for the Science Track Trial Test (ETEC official) Open the official document

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