Which of the following geometric shapes best represents the change in energy and change in biomass from one trophic level to the next?

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.

Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content

Which short-term environmental changes would a very small asteroid or comet impact on earth most likely cause? check all that apply. flooding extinction craters on surface changes in weather patterns death of organisms and populations