What is it called during meiosis when the homologous chromosomes get arranged in pairs, but each of the two is connected to opposite sides of the cell?
A) mutation
B) nondisjunction
C) random alignment
D) crossing over

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.

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.

whats the drop down answers ?

explanation: