Which statement best describes scientists who contributed to the current body of scientific knowledge? a. they were wealthy men during the 20th century. ob. they were made up of men and women throughout history from different countries. oc. they were mainly ancient philosophers whose theories stood the test of time. od. they were mainly from european countries such as england and france.

hi~~

i would say that hybridization occurs frequently in nature, because there are many types of hybrids that have occurred naturally, such as the mule (male donkey + female horse)

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.

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?