Specialized structures that work together inside a cell are called . Choose the correct answer. nuclei

organelles

eukaryotes

prokaryotes

Use this diagram of an animal cell to answer the question. where does the first stage of cellular respiration occur? w x y z

Match the digestive enzymes to the macro molecules they to digest. down fats into glycerol and fatty acids down carbohydrates into simple sugars down nucleic acids into nitrogenous bases and simple sugars down proteins into amino acids

What have we learned from fossil evidence about evolution? a) it is an abrupt change. b)the process is observable. c) it takes place during one lifetime only. d)the most complex traits are always selected.