A whale has a calf and a bacteria replicates through cloning. Both of these are examples of what? reproduction
growth and development
needing energy
maintaining homeostasis

10 points each edgenuity2020 unit test

answer; a muscle cell, another neuron and a of the above

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.