Reflection and absorbtion by the atmosphere prevent some from reaching earth's surface

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.

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities

Which cell organelle is the site for photosynthesis? a. chloroplast b. endoplasmic reticulum c. golgi apparatus d. lysosome