Before Jane gives a presentation to her class, she gets very nervous and her heart begins beating faster than usual. Which statement best classifies this reaction? The autonomic nervous system is creating an involuntary response to stimuli.
The sensory somatic nervous system is creating a voluntary response to stimuli.
The autonomic nervous system is creating a voluntary response to stimuli.
The sensory somatic nervous system is creating an involuntary response to stimuli.

Using freezing point depression to find molecular weight lab report

Iwill give brainiest to first person who gets it ! what are 3 basic types of interactions we see in an ecosystem?

Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h,o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.