Answer:
the brain stem
Explanation:
the structures of our brain stem, in conjunction with our spinal cord (not a part of our brain) is responsible for involuntary action. Not sure if it generate signals, but hey it's better than no answer.
The statement which best explains why carbon is present in so many kinds of molecules is because <u>it can form four covalent bonds.
<em /></u>It isn't rare on Earth, so A is incorrect. It has valence electrons, so C is incorrect. It cannot become an ion, so D is incorrect.<u>
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Transpiration is the process where plants absorb water through the roots and then give off water vapor through pores in their leaves, so D would be your answer
Schemas refers to a cognitive frame work which help humans to organize and give interpretations to information obtained both from within and from the external enviroment. Schema guide human cognitive processes and behaviour. Schema helps in structuring our memories by acting as a glue which hold all the information we have gathered together. Shcema is used in recognizing new experience and in relating it with old experiences. Schema affects humans' perception, encoding, memory recall, etc.
Answer:
Radio waves, microwaves, infrared and visible light can all be used for communication.