The periodic table is based on an element's
a. atomic number.
b. molecular size.
c. molecular mass.
d. atomic mass

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water

What is true of sea slugs in these orders

Are humans interfering with or a part of evolution happening today? find examples of evolution seen in recent history that could be caused by human activity.