SAAT (English)

Biology & Environment: sample 7

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.

The main function of the lymph nodes is to:

protect against infectious diseases
regulate plasma volume
regulate blood pressure
regenerate red blood cells

Show answer

Correct answer: A. protect against infectious diseases

Why

Lymph nodes filter lymph and house immune cells that fight infection — their main role is defense against infectious disease.

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

Want to try questions under time? Take the free preview.

Start the free preview