Pea plant clones are given different amounts of water for a three week period. The first pea plant receives 400 mL each day. The second pea plant receives 200
mL each day. The third pea plant receives 100mL each day. The fourth pea plant
does not receive any extra water; the plant only receives natural ways of
receiving water. The height of the pea plants is recorded daily. Identify the
independent variable. *
i need to know a number

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

sex cells are usually half's then they find another half and make a fertilize egg