Ascientist wants to determine whether a mutant phenotype is due to the loss of gene c or gene d, which are both deleted in a mutant fly with abnormal eyes. mutant flies with transgenic gene c have wild-type eyes, whereas mutant flies with transgenic gene d have abnormal eyes. what can be concluded from these results

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.

true                                                                                                       true true true true true true

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.