2. humans respiratory system contains bronchi for conveying air into the lungs whereas insects have for conveying air throughout the body.

This aquarium exhibits biotic and abiotic factors in an aquatic environment. one of the abiotic factors is

Which statement about the immune system is false? a. lymphocytes reduce inflammation, b. b cells remember specific pathogens. c. most white blood cells kill bacteria d. white blood cells are made in lymph nodes.

Examine the air pressure map. which type of line is shown on the map?