An experiment in which only one variable is changed is aan)
experiment.

Food provides molecules that serve as fuel and building material for all organisms. plants undergo photosynthesis and make their own food. other organisms, like us and the horse seen above, are consumers and eat food. how do all organisms use food as fuel? be sure to include the name of the process in your answer. me.

Which of the following is not considered an appendage of the skin? nails glands follicles none of the above

Which locations on the map are low-pressure areas? a b c d e