Give an example, from any biome, of how two types of organisms may interact with each other in the following ways: A. plant/plant eater

B. predator/prey

Which sequence correctly shows the path of carbon dioxide during repiration?

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.

What processes take place before the mature mrna exits the nucleus?