Each of the following exists as a molecule except
H20
02
He
C6H1206
CO2

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

Body systems are not completely independent they integrate and work together describe one example of the integration between body systems

Jasmine, at 33 months of age, is able to engage in some self-care behaviors but still has trouble with tasks such as putting on socks. a few months later, she accomplishes this same task relatively easily. the change in abilities is most likely due to