An object's velocity can be determined by what two factors? *Its speed and direction
*Its acceleration and its mass
*Its displacement and distance

Mention true or false : a) cholera is marked by acute diarrhea and no urination. b)mosquitoes are the source of dysentery germs.

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes