Due to the coronavirus pandemic, more scientists have taken to testing the effectiveness of different masks. Recently, conflicting studies on the effectiveness have neck gaiters have been published, causing many medical experts to call for even more research and cautioning people against exclusively using them. What characteristic(s) of science does this demonstrate? Group of answer choices Science is observable All of the above Science is flexible Science is testable

The answer to your question is All of the above

Explanation:

Science is observable, testable, and flexible. This is shown when doing an experiment. First you observe something, test, then record. When new information or evidence comes in, Science is flexible enough to allow changes to the topic's existing evidence or add on to it.

ok

explanation:

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.