What are 3 adaptions that frogs have that make them amphibians?

Describe the primary and secondary immune response in terms of speed and number of antibodies produced?

If you have a difficult time knowing where your hand is without looking at it you may be having a problem with your what ?

Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems