How can atoms fill their outer electron shell? they can share electrons. they can gain electrons. they can lose electrons. all of these

In sexual reproducing animals once fertilization of the egg takes place, the exists as a single cell until cell division begins. a) egg b) larva c) sperm d) zygote

What are the formed elements (cell or parts of cell) in blood and what are their functions ?

Acommon kind of mechanical weathering is called